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1 <HTML>
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2 <BODY BGCOLOR="white">
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3 <PRE>
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4 <FONT color="green">001</FONT> /*<a name="line.1"></a>
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5 <FONT color="green">002</FONT> * Licensed to the Apache Software Foundation (ASF) under one or more<a name="line.2"></a>
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6 <FONT color="green">003</FONT> * contributor license agreements. See the NOTICE file distributed with<a name="line.3"></a>
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7 <FONT color="green">004</FONT> * this work for additional information regarding copyright ownership.<a name="line.4"></a>
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8 <FONT color="green">005</FONT> * The ASF licenses this file to You under the Apache License, Version 2.0<a name="line.5"></a>
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9 <FONT color="green">006</FONT> * (the "License"); you may not use this file except in compliance with<a name="line.6"></a>
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10 <FONT color="green">007</FONT> * the License. You may obtain a copy of the License at<a name="line.7"></a>
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11 <FONT color="green">008</FONT> *<a name="line.8"></a>
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12 <FONT color="green">009</FONT> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a>
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13 <FONT color="green">010</FONT> *<a name="line.10"></a>
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14 <FONT color="green">011</FONT> * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a>
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15 <FONT color="green">012</FONT> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.12"></a>
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16 <FONT color="green">013</FONT> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.13"></a>
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17 <FONT color="green">014</FONT> * See the License for the specific language governing permissions and<a name="line.14"></a>
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18 <FONT color="green">015</FONT> * limitations under the License.<a name="line.15"></a>
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19 <FONT color="green">016</FONT> */<a name="line.16"></a>
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20 <FONT color="green">017</FONT> <a name="line.17"></a>
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21 <FONT color="green">018</FONT> package org.apache.commons.math.linear;<a name="line.18"></a>
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22 <FONT color="green">019</FONT> <a name="line.19"></a>
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23 <FONT color="green">020</FONT> import org.apache.commons.math.MathRuntimeException;<a name="line.20"></a>
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24 <FONT color="green">021</FONT> import org.apache.commons.math.util.MathUtils;<a name="line.21"></a>
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25 <FONT color="green">022</FONT> <a name="line.22"></a>
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26 <FONT color="green">023</FONT> /**<a name="line.23"></a>
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27 <FONT color="green">024</FONT> * Basic implementation of RealMatrix methods regardless of the underlying storage.<a name="line.24"></a>
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28 <FONT color="green">025</FONT> * <p>All the methods implemented here use {@link #getEntry(int, int)} to access<a name="line.25"></a>
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29 <FONT color="green">026</FONT> * matrix elements. Derived class can provide faster implementations. </p><a name="line.26"></a>
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30 <FONT color="green">027</FONT> *<a name="line.27"></a>
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31 <FONT color="green">028</FONT> * @version $Revision: 811833 $ $Date: 2009-09-06 12:27:50 -0400 (Sun, 06 Sep 2009) $<a name="line.28"></a>
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32 <FONT color="green">029</FONT> * @since 2.0<a name="line.29"></a>
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33 <FONT color="green">030</FONT> */<a name="line.30"></a>
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34 <FONT color="green">031</FONT> public abstract class AbstractRealMatrix implements RealMatrix {<a name="line.31"></a>
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35 <FONT color="green">032</FONT> <a name="line.32"></a>
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36 <FONT color="green">033</FONT> <a name="line.33"></a>
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37 <FONT color="green">034</FONT> /** Cached LU solver.<a name="line.34"></a>
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38 <FONT color="green">035</FONT> * @deprecated as of release 2.0, since all methods using this are deprecated<a name="line.35"></a>
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39 <FONT color="green">036</FONT> */<a name="line.36"></a>
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40 <FONT color="green">037</FONT> @Deprecated<a name="line.37"></a>
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41 <FONT color="green">038</FONT> private DecompositionSolver lu;<a name="line.38"></a>
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42 <FONT color="green">039</FONT> <a name="line.39"></a>
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43 <FONT color="green">040</FONT> /**<a name="line.40"></a>
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44 <FONT color="green">041</FONT> * Creates a matrix with no data<a name="line.41"></a>
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45 <FONT color="green">042</FONT> */<a name="line.42"></a>
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46 <FONT color="green">043</FONT> protected AbstractRealMatrix() {<a name="line.43"></a>
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47 <FONT color="green">044</FONT> lu = null;<a name="line.44"></a>
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48 <FONT color="green">045</FONT> }<a name="line.45"></a>
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49 <FONT color="green">046</FONT> <a name="line.46"></a>
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50 <FONT color="green">047</FONT> /**<a name="line.47"></a>
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51 <FONT color="green">048</FONT> * Create a new RealMatrix with the supplied row and column dimensions.<a name="line.48"></a>
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52 <FONT color="green">049</FONT> *<a name="line.49"></a>
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53 <FONT color="green">050</FONT> * @param rowDimension the number of rows in the new matrix<a name="line.50"></a>
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54 <FONT color="green">051</FONT> * @param columnDimension the number of columns in the new matrix<a name="line.51"></a>
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55 <FONT color="green">052</FONT> * @throws IllegalArgumentException if row or column dimension is not positive<a name="line.52"></a>
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56 <FONT color="green">053</FONT> */<a name="line.53"></a>
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57 <FONT color="green">054</FONT> protected AbstractRealMatrix(final int rowDimension, final int columnDimension)<a name="line.54"></a>
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58 <FONT color="green">055</FONT> throws IllegalArgumentException {<a name="line.55"></a>
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59 <FONT color="green">056</FONT> if (rowDimension <= 0 ) {<a name="line.56"></a>
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60 <FONT color="green">057</FONT> throw MathRuntimeException.createIllegalArgumentException(<a name="line.57"></a>
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61 <FONT color="green">058</FONT> "invalid row dimension {0} (must be positive)",<a name="line.58"></a>
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62 <FONT color="green">059</FONT> rowDimension);<a name="line.59"></a>
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63 <FONT color="green">060</FONT> }<a name="line.60"></a>
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64 <FONT color="green">061</FONT> if (columnDimension <= 0) {<a name="line.61"></a>
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65 <FONT color="green">062</FONT> throw MathRuntimeException.createIllegalArgumentException(<a name="line.62"></a>
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66 <FONT color="green">063</FONT> "invalid column dimension {0} (must be positive)",<a name="line.63"></a>
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67 <FONT color="green">064</FONT> columnDimension);<a name="line.64"></a>
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68 <FONT color="green">065</FONT> }<a name="line.65"></a>
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69 <FONT color="green">066</FONT> lu = null;<a name="line.66"></a>
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70 <FONT color="green">067</FONT> }<a name="line.67"></a>
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71 <FONT color="green">068</FONT> <a name="line.68"></a>
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72 <FONT color="green">069</FONT> /** {@inheritDoc} */<a name="line.69"></a>
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73 <FONT color="green">070</FONT> public abstract RealMatrix createMatrix(final int rowDimension, final int columnDimension)<a name="line.70"></a>
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74 <FONT color="green">071</FONT> throws IllegalArgumentException;<a name="line.71"></a>
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75 <FONT color="green">072</FONT> <a name="line.72"></a>
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76 <FONT color="green">073</FONT> /** {@inheritDoc} */<a name="line.73"></a>
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77 <FONT color="green">074</FONT> public abstract RealMatrix copy();<a name="line.74"></a>
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78 <FONT color="green">075</FONT> <a name="line.75"></a>
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79 <FONT color="green">076</FONT> /** {@inheritDoc} */<a name="line.76"></a>
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80 <FONT color="green">077</FONT> public RealMatrix add(RealMatrix m) throws IllegalArgumentException {<a name="line.77"></a>
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81 <FONT color="green">078</FONT> <a name="line.78"></a>
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82 <FONT color="green">079</FONT> // safety check<a name="line.79"></a>
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83 <FONT color="green">080</FONT> MatrixUtils.checkAdditionCompatible(this, m);<a name="line.80"></a>
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84 <FONT color="green">081</FONT> <a name="line.81"></a>
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85 <FONT color="green">082</FONT> final int rowCount = getRowDimension();<a name="line.82"></a>
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86 <FONT color="green">083</FONT> final int columnCount = getColumnDimension();<a name="line.83"></a>
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87 <FONT color="green">084</FONT> final RealMatrix out = createMatrix(rowCount, columnCount);<a name="line.84"></a>
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88 <FONT color="green">085</FONT> for (int row = 0; row < rowCount; ++row) {<a name="line.85"></a>
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89 <FONT color="green">086</FONT> for (int col = 0; col < columnCount; ++col) {<a name="line.86"></a>
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90 <FONT color="green">087</FONT> out.setEntry(row, col, getEntry(row, col) + m.getEntry(row, col));<a name="line.87"></a>
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91 <FONT color="green">088</FONT> }<a name="line.88"></a>
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92 <FONT color="green">089</FONT> }<a name="line.89"></a>
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93 <FONT color="green">090</FONT> <a name="line.90"></a>
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94 <FONT color="green">091</FONT> return out;<a name="line.91"></a>
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95 <FONT color="green">092</FONT> <a name="line.92"></a>
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96 <FONT color="green">093</FONT> }<a name="line.93"></a>
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97 <FONT color="green">094</FONT> <a name="line.94"></a>
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98 <FONT color="green">095</FONT> /** {@inheritDoc} */<a name="line.95"></a>
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99 <FONT color="green">096</FONT> public RealMatrix subtract(final RealMatrix m) throws IllegalArgumentException {<a name="line.96"></a>
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100 <FONT color="green">097</FONT> <a name="line.97"></a>
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101 <FONT color="green">098</FONT> // safety check<a name="line.98"></a>
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102 <FONT color="green">099</FONT> MatrixUtils.checkSubtractionCompatible(this, m);<a name="line.99"></a>
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103 <FONT color="green">100</FONT> <a name="line.100"></a>
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104 <FONT color="green">101</FONT> final int rowCount = getRowDimension();<a name="line.101"></a>
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105 <FONT color="green">102</FONT> final int columnCount = getColumnDimension();<a name="line.102"></a>
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106 <FONT color="green">103</FONT> final RealMatrix out = createMatrix(rowCount, columnCount);<a name="line.103"></a>
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107 <FONT color="green">104</FONT> for (int row = 0; row < rowCount; ++row) {<a name="line.104"></a>
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108 <FONT color="green">105</FONT> for (int col = 0; col < columnCount; ++col) {<a name="line.105"></a>
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109 <FONT color="green">106</FONT> out.setEntry(row, col, getEntry(row, col) - m.getEntry(row, col));<a name="line.106"></a>
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110 <FONT color="green">107</FONT> }<a name="line.107"></a>
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111 <FONT color="green">108</FONT> }<a name="line.108"></a>
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112 <FONT color="green">109</FONT> <a name="line.109"></a>
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113 <FONT color="green">110</FONT> return out;<a name="line.110"></a>
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114 <FONT color="green">111</FONT> <a name="line.111"></a>
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115 <FONT color="green">112</FONT> }<a name="line.112"></a>
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116 <FONT color="green">113</FONT> <a name="line.113"></a>
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117 <FONT color="green">114</FONT> /** {@inheritDoc} */<a name="line.114"></a>
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118 <FONT color="green">115</FONT> public RealMatrix scalarAdd(final double d) {<a name="line.115"></a>
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119 <FONT color="green">116</FONT> <a name="line.116"></a>
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120 <FONT color="green">117</FONT> final int rowCount = getRowDimension();<a name="line.117"></a>
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121 <FONT color="green">118</FONT> final int columnCount = getColumnDimension();<a name="line.118"></a>
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122 <FONT color="green">119</FONT> final RealMatrix out = createMatrix(rowCount, columnCount);<a name="line.119"></a>
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123 <FONT color="green">120</FONT> for (int row = 0; row < rowCount; ++row) {<a name="line.120"></a>
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124 <FONT color="green">121</FONT> for (int col = 0; col < columnCount; ++col) {<a name="line.121"></a>
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125 <FONT color="green">122</FONT> out.setEntry(row, col, getEntry(row, col) + d);<a name="line.122"></a>
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126 <FONT color="green">123</FONT> }<a name="line.123"></a>
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127 <FONT color="green">124</FONT> }<a name="line.124"></a>
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128 <FONT color="green">125</FONT> <a name="line.125"></a>
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129 <FONT color="green">126</FONT> return out;<a name="line.126"></a>
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130 <FONT color="green">127</FONT> <a name="line.127"></a>
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131 <FONT color="green">128</FONT> }<a name="line.128"></a>
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132 <FONT color="green">129</FONT> <a name="line.129"></a>
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133 <FONT color="green">130</FONT> /** {@inheritDoc} */<a name="line.130"></a>
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134 <FONT color="green">131</FONT> public RealMatrix scalarMultiply(final double d) {<a name="line.131"></a>
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135 <FONT color="green">132</FONT> <a name="line.132"></a>
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136 <FONT color="green">133</FONT> final int rowCount = getRowDimension();<a name="line.133"></a>
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137 <FONT color="green">134</FONT> final int columnCount = getColumnDimension();<a name="line.134"></a>
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138 <FONT color="green">135</FONT> final RealMatrix out = createMatrix(rowCount, columnCount);<a name="line.135"></a>
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139 <FONT color="green">136</FONT> for (int row = 0; row < rowCount; ++row) {<a name="line.136"></a>
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140 <FONT color="green">137</FONT> for (int col = 0; col < columnCount; ++col) {<a name="line.137"></a>
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141 <FONT color="green">138</FONT> out.setEntry(row, col, getEntry(row, col) * d);<a name="line.138"></a>
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142 <FONT color="green">139</FONT> }<a name="line.139"></a>
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143 <FONT color="green">140</FONT> }<a name="line.140"></a>
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144 <FONT color="green">141</FONT> <a name="line.141"></a>
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145 <FONT color="green">142</FONT> return out;<a name="line.142"></a>
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146 <FONT color="green">143</FONT> <a name="line.143"></a>
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147 <FONT color="green">144</FONT> }<a name="line.144"></a>
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148 <FONT color="green">145</FONT> <a name="line.145"></a>
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149 <FONT color="green">146</FONT> /** {@inheritDoc} */<a name="line.146"></a>
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150 <FONT color="green">147</FONT> public RealMatrix multiply(final RealMatrix m)<a name="line.147"></a>
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151 <FONT color="green">148</FONT> throws IllegalArgumentException {<a name="line.148"></a>
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152 <FONT color="green">149</FONT> <a name="line.149"></a>
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153 <FONT color="green">150</FONT> // safety check<a name="line.150"></a>
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154 <FONT color="green">151</FONT> MatrixUtils.checkMultiplicationCompatible(this, m);<a name="line.151"></a>
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155 <FONT color="green">152</FONT> <a name="line.152"></a>
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156 <FONT color="green">153</FONT> final int nRows = getRowDimension();<a name="line.153"></a>
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157 <FONT color="green">154</FONT> final int nCols = m.getColumnDimension();<a name="line.154"></a>
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158 <FONT color="green">155</FONT> final int nSum = getColumnDimension();<a name="line.155"></a>
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159 <FONT color="green">156</FONT> final RealMatrix out = createMatrix(nRows, nCols);<a name="line.156"></a>
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160 <FONT color="green">157</FONT> for (int row = 0; row < nRows; ++row) {<a name="line.157"></a>
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161 <FONT color="green">158</FONT> for (int col = 0; col < nCols; ++col) {<a name="line.158"></a>
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162 <FONT color="green">159</FONT> double sum = 0;<a name="line.159"></a>
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163 <FONT color="green">160</FONT> for (int i = 0; i < nSum; ++i) {<a name="line.160"></a>
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164 <FONT color="green">161</FONT> sum += getEntry(row, i) * m.getEntry(i, col);<a name="line.161"></a>
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165 <FONT color="green">162</FONT> }<a name="line.162"></a>
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166 <FONT color="green">163</FONT> out.setEntry(row, col, sum);<a name="line.163"></a>
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167 <FONT color="green">164</FONT> }<a name="line.164"></a>
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168 <FONT color="green">165</FONT> }<a name="line.165"></a>
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169 <FONT color="green">166</FONT> <a name="line.166"></a>
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170 <FONT color="green">167</FONT> return out;<a name="line.167"></a>
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171 <FONT color="green">168</FONT> <a name="line.168"></a>
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172 <FONT color="green">169</FONT> }<a name="line.169"></a>
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173 <FONT color="green">170</FONT> <a name="line.170"></a>
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174 <FONT color="green">171</FONT> /** {@inheritDoc} */<a name="line.171"></a>
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175 <FONT color="green">172</FONT> public RealMatrix preMultiply(final RealMatrix m)<a name="line.172"></a>
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176 <FONT color="green">173</FONT> throws IllegalArgumentException {<a name="line.173"></a>
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177 <FONT color="green">174</FONT> return m.multiply(this);<a name="line.174"></a>
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178 <FONT color="green">175</FONT> }<a name="line.175"></a>
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179 <FONT color="green">176</FONT> <a name="line.176"></a>
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180 <FONT color="green">177</FONT> /** {@inheritDoc} */<a name="line.177"></a>
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181 <FONT color="green">178</FONT> public double[][] getData() {<a name="line.178"></a>
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182 <FONT color="green">179</FONT> <a name="line.179"></a>
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183 <FONT color="green">180</FONT> final double[][] data = new double[getRowDimension()][getColumnDimension()];<a name="line.180"></a>
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184 <FONT color="green">181</FONT> <a name="line.181"></a>
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185 <FONT color="green">182</FONT> for (int i = 0; i < data.length; ++i) {<a name="line.182"></a>
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186 <FONT color="green">183</FONT> final double[] dataI = data[i];<a name="line.183"></a>
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187 <FONT color="green">184</FONT> for (int j = 0; j < dataI.length; ++j) {<a name="line.184"></a>
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188 <FONT color="green">185</FONT> dataI[j] = getEntry(i, j);<a name="line.185"></a>
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189 <FONT color="green">186</FONT> }<a name="line.186"></a>
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190 <FONT color="green">187</FONT> }<a name="line.187"></a>
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191 <FONT color="green">188</FONT> <a name="line.188"></a>
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192 <FONT color="green">189</FONT> return data;<a name="line.189"></a>
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193 <FONT color="green">190</FONT> <a name="line.190"></a>
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194 <FONT color="green">191</FONT> }<a name="line.191"></a>
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195 <FONT color="green">192</FONT> <a name="line.192"></a>
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196 <FONT color="green">193</FONT> /** {@inheritDoc} */<a name="line.193"></a>
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197 <FONT color="green">194</FONT> public double getNorm() {<a name="line.194"></a>
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198 <FONT color="green">195</FONT> return walkInColumnOrder(new RealMatrixPreservingVisitor() {<a name="line.195"></a>
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199 <FONT color="green">196</FONT> <a name="line.196"></a>
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200 <FONT color="green">197</FONT> /** Last row index. */<a name="line.197"></a>
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201 <FONT color="green">198</FONT> private double endRow;<a name="line.198"></a>
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202 <FONT color="green">199</FONT> <a name="line.199"></a>
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203 <FONT color="green">200</FONT> /** Sum of absolute values on one column. */<a name="line.200"></a>
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204 <FONT color="green">201</FONT> private double columnSum;<a name="line.201"></a>
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205 <FONT color="green">202</FONT> <a name="line.202"></a>
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206 <FONT color="green">203</FONT> /** Maximal sum across all columns. */<a name="line.203"></a>
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207 <FONT color="green">204</FONT> private double maxColSum;<a name="line.204"></a>
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208 <FONT color="green">205</FONT> <a name="line.205"></a>
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209 <FONT color="green">206</FONT> /** {@inheritDoc} */<a name="line.206"></a>
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210 <FONT color="green">207</FONT> public void start(final int rows, final int columns,<a name="line.207"></a>
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211 <FONT color="green">208</FONT> final int startRow, final int endRow,<a name="line.208"></a>
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212 <FONT color="green">209</FONT> final int startColumn, final int endColumn) {<a name="line.209"></a>
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213 <FONT color="green">210</FONT> this.endRow = endRow;<a name="line.210"></a>
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214 <FONT color="green">211</FONT> columnSum = 0;<a name="line.211"></a>
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215 <FONT color="green">212</FONT> maxColSum = 0;<a name="line.212"></a>
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216 <FONT color="green">213</FONT> }<a name="line.213"></a>
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217 <FONT color="green">214</FONT> <a name="line.214"></a>
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218 <FONT color="green">215</FONT> /** {@inheritDoc} */<a name="line.215"></a>
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219 <FONT color="green">216</FONT> public void visit(final int row, final int column, final double value) {<a name="line.216"></a>
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220 <FONT color="green">217</FONT> columnSum += Math.abs(value);<a name="line.217"></a>
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221 <FONT color="green">218</FONT> if (row == endRow) {<a name="line.218"></a>
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222 <FONT color="green">219</FONT> maxColSum = Math.max(maxColSum, columnSum);<a name="line.219"></a>
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223 <FONT color="green">220</FONT> columnSum = 0;<a name="line.220"></a>
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224 <FONT color="green">221</FONT> }<a name="line.221"></a>
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225 <FONT color="green">222</FONT> }<a name="line.222"></a>
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226 <FONT color="green">223</FONT> <a name="line.223"></a>
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227 <FONT color="green">224</FONT> /** {@inheritDoc} */<a name="line.224"></a>
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228 <FONT color="green">225</FONT> public double end() {<a name="line.225"></a>
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229 <FONT color="green">226</FONT> return maxColSum;<a name="line.226"></a>
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230 <FONT color="green">227</FONT> }<a name="line.227"></a>
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231 <FONT color="green">228</FONT> <a name="line.228"></a>
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232 <FONT color="green">229</FONT> });<a name="line.229"></a>
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233 <FONT color="green">230</FONT> }<a name="line.230"></a>
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234 <FONT color="green">231</FONT> <a name="line.231"></a>
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235 <FONT color="green">232</FONT> /** {@inheritDoc} */<a name="line.232"></a>
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236 <FONT color="green">233</FONT> public double getFrobeniusNorm() {<a name="line.233"></a>
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237 <FONT color="green">234</FONT> return walkInOptimizedOrder(new RealMatrixPreservingVisitor() {<a name="line.234"></a>
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238 <FONT color="green">235</FONT> <a name="line.235"></a>
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239 <FONT color="green">236</FONT> /** Sum of squared entries. */<a name="line.236"></a>
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240 <FONT color="green">237</FONT> private double sum;<a name="line.237"></a>
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241 <FONT color="green">238</FONT> <a name="line.238"></a>
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242 <FONT color="green">239</FONT> /** {@inheritDoc} */<a name="line.239"></a>
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243 <FONT color="green">240</FONT> public void start(final int rows, final int columns,<a name="line.240"></a>
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244 <FONT color="green">241</FONT> final int startRow, final int endRow,<a name="line.241"></a>
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245 <FONT color="green">242</FONT> final int startColumn, final int endColumn) {<a name="line.242"></a>
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246 <FONT color="green">243</FONT> sum = 0;<a name="line.243"></a>
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247 <FONT color="green">244</FONT> }<a name="line.244"></a>
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248 <FONT color="green">245</FONT> <a name="line.245"></a>
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249 <FONT color="green">246</FONT> /** {@inheritDoc} */<a name="line.246"></a>
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250 <FONT color="green">247</FONT> public void visit(final int row, final int column, final double value) {<a name="line.247"></a>
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251 <FONT color="green">248</FONT> sum += value * value;<a name="line.248"></a>
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252 <FONT color="green">249</FONT> }<a name="line.249"></a>
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253 <FONT color="green">250</FONT> <a name="line.250"></a>
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254 <FONT color="green">251</FONT> /** {@inheritDoc} */<a name="line.251"></a>
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255 <FONT color="green">252</FONT> public double end() {<a name="line.252"></a>
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256 <FONT color="green">253</FONT> return Math.sqrt(sum);<a name="line.253"></a>
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257 <FONT color="green">254</FONT> }<a name="line.254"></a>
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258 <FONT color="green">255</FONT> <a name="line.255"></a>
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259 <FONT color="green">256</FONT> });<a name="line.256"></a>
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260 <FONT color="green">257</FONT> }<a name="line.257"></a>
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261 <FONT color="green">258</FONT> <a name="line.258"></a>
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262 <FONT color="green">259</FONT> /** {@inheritDoc} */<a name="line.259"></a>
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263 <FONT color="green">260</FONT> public RealMatrix getSubMatrix(final int startRow, final int endRow,<a name="line.260"></a>
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264 <FONT color="green">261</FONT> final int startColumn, final int endColumn)<a name="line.261"></a>
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265 <FONT color="green">262</FONT> throws MatrixIndexException {<a name="line.262"></a>
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266 <FONT color="green">263</FONT> <a name="line.263"></a>
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267 <FONT color="green">264</FONT> MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);<a name="line.264"></a>
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268 <FONT color="green">265</FONT> <a name="line.265"></a>
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269 <FONT color="green">266</FONT> final RealMatrix subMatrix =<a name="line.266"></a>
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270 <FONT color="green">267</FONT> createMatrix(endRow - startRow + 1, endColumn - startColumn + 1);<a name="line.267"></a>
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271 <FONT color="green">268</FONT> for (int i = startRow; i <= endRow; ++i) {<a name="line.268"></a>
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272 <FONT color="green">269</FONT> for (int j = startColumn; j <= endColumn; ++j) {<a name="line.269"></a>
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273 <FONT color="green">270</FONT> subMatrix.setEntry(i - startRow, j - startColumn, getEntry(i, j));<a name="line.270"></a>
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274 <FONT color="green">271</FONT> }<a name="line.271"></a>
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275 <FONT color="green">272</FONT> }<a name="line.272"></a>
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276 <FONT color="green">273</FONT> <a name="line.273"></a>
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277 <FONT color="green">274</FONT> return subMatrix;<a name="line.274"></a>
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278 <FONT color="green">275</FONT> <a name="line.275"></a>
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279 <FONT color="green">276</FONT> }<a name="line.276"></a>
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280 <FONT color="green">277</FONT> <a name="line.277"></a>
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281 <FONT color="green">278</FONT> /** {@inheritDoc} */<a name="line.278"></a>
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282 <FONT color="green">279</FONT> public RealMatrix getSubMatrix(final int[] selectedRows, final int[] selectedColumns)<a name="line.279"></a>
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|
283 <FONT color="green">280</FONT> throws MatrixIndexException {<a name="line.280"></a>
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284 <FONT color="green">281</FONT> <a name="line.281"></a>
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285 <FONT color="green">282</FONT> // safety checks<a name="line.282"></a>
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286 <FONT color="green">283</FONT> MatrixUtils.checkSubMatrixIndex(this, selectedRows, selectedColumns);<a name="line.283"></a>
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287 <FONT color="green">284</FONT> <a name="line.284"></a>
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288 <FONT color="green">285</FONT> // copy entries<a name="line.285"></a>
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|
289 <FONT color="green">286</FONT> final RealMatrix subMatrix =<a name="line.286"></a>
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|
290 <FONT color="green">287</FONT> createMatrix(selectedRows.length, selectedColumns.length);<a name="line.287"></a>
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291 <FONT color="green">288</FONT> subMatrix.walkInOptimizedOrder(new DefaultRealMatrixChangingVisitor() {<a name="line.288"></a>
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|
292 <FONT color="green">289</FONT> <a name="line.289"></a>
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293 <FONT color="green">290</FONT> /** {@inheritDoc} */<a name="line.290"></a>
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|
294 <FONT color="green">291</FONT> @Override<a name="line.291"></a>
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|
295 <FONT color="green">292</FONT> public double visit(final int row, final int column, final double value) {<a name="line.292"></a>
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|
296 <FONT color="green">293</FONT> return getEntry(selectedRows[row], selectedColumns[column]);<a name="line.293"></a>
|
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297 <FONT color="green">294</FONT> }<a name="line.294"></a>
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298 <FONT color="green">295</FONT> <a name="line.295"></a>
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|
299 <FONT color="green">296</FONT> });<a name="line.296"></a>
|
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|
300 <FONT color="green">297</FONT> <a name="line.297"></a>
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|
301 <FONT color="green">298</FONT> return subMatrix;<a name="line.298"></a>
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|
302 <FONT color="green">299</FONT> <a name="line.299"></a>
|
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|
303 <FONT color="green">300</FONT> }<a name="line.300"></a>
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|
304 <FONT color="green">301</FONT> <a name="line.301"></a>
|
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|
305 <FONT color="green">302</FONT> /** {@inheritDoc} */<a name="line.302"></a>
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306 <FONT color="green">303</FONT> public void copySubMatrix(final int startRow, final int endRow,<a name="line.303"></a>
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|
307 <FONT color="green">304</FONT> final int startColumn, final int endColumn,<a name="line.304"></a>
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|
308 <FONT color="green">305</FONT> final double[][] destination)<a name="line.305"></a>
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|
309 <FONT color="green">306</FONT> throws MatrixIndexException, IllegalArgumentException {<a name="line.306"></a>
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|
310 <FONT color="green">307</FONT> <a name="line.307"></a>
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|
311 <FONT color="green">308</FONT> // safety checks<a name="line.308"></a>
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|
312 <FONT color="green">309</FONT> MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);<a name="line.309"></a>
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|
313 <FONT color="green">310</FONT> final int rowsCount = endRow + 1 - startRow;<a name="line.310"></a>
|
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|
314 <FONT color="green">311</FONT> final int columnsCount = endColumn + 1 - startColumn;<a name="line.311"></a>
|
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|
315 <FONT color="green">312</FONT> if ((destination.length < rowsCount) || (destination[0].length < columnsCount)) {<a name="line.312"></a>
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|
|
316 <FONT color="green">313</FONT> throw MathRuntimeException.createIllegalArgumentException(<a name="line.313"></a>
|
|
|
317 <FONT color="green">314</FONT> "dimensions mismatch: got {0}x{1} but expected {2}x{3}",<a name="line.314"></a>
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|
318 <FONT color="green">315</FONT> destination.length, destination[0].length,<a name="line.315"></a>
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|
319 <FONT color="green">316</FONT> rowsCount, columnsCount);<a name="line.316"></a>
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|
320 <FONT color="green">317</FONT> }<a name="line.317"></a>
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|
321 <FONT color="green">318</FONT> <a name="line.318"></a>
|
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|
322 <FONT color="green">319</FONT> // copy entries<a name="line.319"></a>
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|
|
323 <FONT color="green">320</FONT> walkInOptimizedOrder(new DefaultRealMatrixPreservingVisitor() {<a name="line.320"></a>
|
|
|
324 <FONT color="green">321</FONT> <a name="line.321"></a>
|
|
|
325 <FONT color="green">322</FONT> /** Initial row index. */<a name="line.322"></a>
|
|
|
326 <FONT color="green">323</FONT> private int startRow;<a name="line.323"></a>
|
|
|
327 <FONT color="green">324</FONT> <a name="line.324"></a>
|
|
|
328 <FONT color="green">325</FONT> /** Initial column index. */<a name="line.325"></a>
|
|
|
329 <FONT color="green">326</FONT> private int startColumn;<a name="line.326"></a>
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|
|
330 <FONT color="green">327</FONT> <a name="line.327"></a>
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|
331 <FONT color="green">328</FONT> /** {@inheritDoc} */<a name="line.328"></a>
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|
332 <FONT color="green">329</FONT> @Override<a name="line.329"></a>
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|
333 <FONT color="green">330</FONT> public void start(final int rows, final int columns,<a name="line.330"></a>
|
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|
334 <FONT color="green">331</FONT> final int startRow, final int endRow,<a name="line.331"></a>
|
|
|
335 <FONT color="green">332</FONT> final int startColumn, final int endColumn) {<a name="line.332"></a>
|
|
|
336 <FONT color="green">333</FONT> this.startRow = startRow;<a name="line.333"></a>
|
|
|
337 <FONT color="green">334</FONT> this.startColumn = startColumn;<a name="line.334"></a>
|
|
|
338 <FONT color="green">335</FONT> }<a name="line.335"></a>
|
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|
339 <FONT color="green">336</FONT> <a name="line.336"></a>
|
|
|
340 <FONT color="green">337</FONT> /** {@inheritDoc} */<a name="line.337"></a>
|
|
|
341 <FONT color="green">338</FONT> @Override<a name="line.338"></a>
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|
342 <FONT color="green">339</FONT> public void visit(final int row, final int column, final double value) {<a name="line.339"></a>
|
|
|
343 <FONT color="green">340</FONT> destination[row - startRow][column - startColumn] = value;<a name="line.340"></a>
|
|
|
344 <FONT color="green">341</FONT> }<a name="line.341"></a>
|
|
|
345 <FONT color="green">342</FONT> <a name="line.342"></a>
|
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|
346 <FONT color="green">343</FONT> }, startRow, endRow, startColumn, endColumn);<a name="line.343"></a>
|
|
|
347 <FONT color="green">344</FONT> <a name="line.344"></a>
|
|
|
348 <FONT color="green">345</FONT> }<a name="line.345"></a>
|
|
|
349 <FONT color="green">346</FONT> <a name="line.346"></a>
|
|
|
350 <FONT color="green">347</FONT> /** {@inheritDoc} */<a name="line.347"></a>
|
|
|
351 <FONT color="green">348</FONT> public void copySubMatrix(int[] selectedRows, int[] selectedColumns, double[][] destination)<a name="line.348"></a>
|
|
|
352 <FONT color="green">349</FONT> throws MatrixIndexException, IllegalArgumentException {<a name="line.349"></a>
|
|
|
353 <FONT color="green">350</FONT> <a name="line.350"></a>
|
|
|
354 <FONT color="green">351</FONT> // safety checks<a name="line.351"></a>
|
|
|
355 <FONT color="green">352</FONT> MatrixUtils.checkSubMatrixIndex(this, selectedRows, selectedColumns);<a name="line.352"></a>
|
|
|
356 <FONT color="green">353</FONT> if ((destination.length < selectedRows.length) ||<a name="line.353"></a>
|
|
|
357 <FONT color="green">354</FONT> (destination[0].length < selectedColumns.length)) {<a name="line.354"></a>
|
|
|
358 <FONT color="green">355</FONT> throw MathRuntimeException.createIllegalArgumentException(<a name="line.355"></a>
|
|
|
359 <FONT color="green">356</FONT> "dimensions mismatch: got {0}x{1} but expected {2}x{3}",<a name="line.356"></a>
|
|
|
360 <FONT color="green">357</FONT> destination.length, destination[0].length,<a name="line.357"></a>
|
|
|
361 <FONT color="green">358</FONT> selectedRows.length, selectedColumns.length);<a name="line.358"></a>
|
|
|
362 <FONT color="green">359</FONT> }<a name="line.359"></a>
|
|
|
363 <FONT color="green">360</FONT> <a name="line.360"></a>
|
|
|
364 <FONT color="green">361</FONT> // copy entries<a name="line.361"></a>
|
|
|
365 <FONT color="green">362</FONT> for (int i = 0; i < selectedRows.length; i++) {<a name="line.362"></a>
|
|
|
366 <FONT color="green">363</FONT> final double[] destinationI = destination[i];<a name="line.363"></a>
|
|
|
367 <FONT color="green">364</FONT> for (int j = 0; j < selectedColumns.length; j++) {<a name="line.364"></a>
|
|
|
368 <FONT color="green">365</FONT> destinationI[j] = getEntry(selectedRows[i], selectedColumns[j]);<a name="line.365"></a>
|
|
|
369 <FONT color="green">366</FONT> }<a name="line.366"></a>
|
|
|
370 <FONT color="green">367</FONT> }<a name="line.367"></a>
|
|
|
371 <FONT color="green">368</FONT> <a name="line.368"></a>
|
|
|
372 <FONT color="green">369</FONT> }<a name="line.369"></a>
|
|
|
373 <FONT color="green">370</FONT> <a name="line.370"></a>
|
|
|
374 <FONT color="green">371</FONT> /** {@inheritDoc} */<a name="line.371"></a>
|
|
|
375 <FONT color="green">372</FONT> public void setSubMatrix(final double[][] subMatrix, final int row, final int column)<a name="line.372"></a>
|
|
|
376 <FONT color="green">373</FONT> throws MatrixIndexException {<a name="line.373"></a>
|
|
|
377 <FONT color="green">374</FONT> <a name="line.374"></a>
|
|
|
378 <FONT color="green">375</FONT> final int nRows = subMatrix.length;<a name="line.375"></a>
|
|
|
379 <FONT color="green">376</FONT> if (nRows == 0) {<a name="line.376"></a>
|
|
|
380 <FONT color="green">377</FONT> throw MathRuntimeException.createIllegalArgumentException("matrix must have at least one row");<a name="line.377"></a>
|
|
|
381 <FONT color="green">378</FONT> }<a name="line.378"></a>
|
|
|
382 <FONT color="green">379</FONT> <a name="line.379"></a>
|
|
|
383 <FONT color="green">380</FONT> final int nCols = subMatrix[0].length;<a name="line.380"></a>
|
|
|
384 <FONT color="green">381</FONT> if (nCols == 0) {<a name="line.381"></a>
|
|
|
385 <FONT color="green">382</FONT> throw MathRuntimeException.createIllegalArgumentException("matrix must have at least one column");<a name="line.382"></a>
|
|
|
386 <FONT color="green">383</FONT> }<a name="line.383"></a>
|
|
|
387 <FONT color="green">384</FONT> <a name="line.384"></a>
|
|
|
388 <FONT color="green">385</FONT> for (int r = 1; r < nRows; ++r) {<a name="line.385"></a>
|
|
|
389 <FONT color="green">386</FONT> if (subMatrix[r].length != nCols) {<a name="line.386"></a>
|
|
|
390 <FONT color="green">387</FONT> throw MathRuntimeException.createIllegalArgumentException(<a name="line.387"></a>
|
|
|
391 <FONT color="green">388</FONT> "some rows have length {0} while others have length {1}",<a name="line.388"></a>
|
|
|
392 <FONT color="green">389</FONT> nCols, subMatrix[r].length);<a name="line.389"></a>
|
|
|
393 <FONT color="green">390</FONT> }<a name="line.390"></a>
|
|
|
394 <FONT color="green">391</FONT> }<a name="line.391"></a>
|
|
|
395 <FONT color="green">392</FONT> <a name="line.392"></a>
|
|
|
396 <FONT color="green">393</FONT> MatrixUtils.checkRowIndex(this, row);<a name="line.393"></a>
|
|
|
397 <FONT color="green">394</FONT> MatrixUtils.checkColumnIndex(this, column);<a name="line.394"></a>
|
|
|
398 <FONT color="green">395</FONT> MatrixUtils.checkRowIndex(this, nRows + row - 1);<a name="line.395"></a>
|
|
|
399 <FONT color="green">396</FONT> MatrixUtils.checkColumnIndex(this, nCols + column - 1);<a name="line.396"></a>
|
|
|
400 <FONT color="green">397</FONT> <a name="line.397"></a>
|
|
|
401 <FONT color="green">398</FONT> for (int i = 0; i < nRows; ++i) {<a name="line.398"></a>
|
|
|
402 <FONT color="green">399</FONT> for (int j = 0; j < nCols; ++j) {<a name="line.399"></a>
|
|
|
403 <FONT color="green">400</FONT> setEntry(row + i, column + j, subMatrix[i][j]);<a name="line.400"></a>
|
|
|
404 <FONT color="green">401</FONT> }<a name="line.401"></a>
|
|
|
405 <FONT color="green">402</FONT> }<a name="line.402"></a>
|
|
|
406 <FONT color="green">403</FONT> <a name="line.403"></a>
|
|
|
407 <FONT color="green">404</FONT> lu = null;<a name="line.404"></a>
|
|
|
408 <FONT color="green">405</FONT> <a name="line.405"></a>
|
|
|
409 <FONT color="green">406</FONT> }<a name="line.406"></a>
|
|
|
410 <FONT color="green">407</FONT> <a name="line.407"></a>
|
|
|
411 <FONT color="green">408</FONT> /** {@inheritDoc} */<a name="line.408"></a>
|
|
|
412 <FONT color="green">409</FONT> public RealMatrix getRowMatrix(final int row)<a name="line.409"></a>
|
|
|
413 <FONT color="green">410</FONT> throws MatrixIndexException {<a name="line.410"></a>
|
|
|
414 <FONT color="green">411</FONT> <a name="line.411"></a>
|
|
|
415 <FONT color="green">412</FONT> MatrixUtils.checkRowIndex(this, row);<a name="line.412"></a>
|
|
|
416 <FONT color="green">413</FONT> final int nCols = getColumnDimension();<a name="line.413"></a>
|
|
|
417 <FONT color="green">414</FONT> final RealMatrix out = createMatrix(1, nCols);<a name="line.414"></a>
|
|
|
418 <FONT color="green">415</FONT> for (int i = 0; i < nCols; ++i) {<a name="line.415"></a>
|
|
|
419 <FONT color="green">416</FONT> out.setEntry(0, i, getEntry(row, i));<a name="line.416"></a>
|
|
|
420 <FONT color="green">417</FONT> }<a name="line.417"></a>
|
|
|
421 <FONT color="green">418</FONT> <a name="line.418"></a>
|
|
|
422 <FONT color="green">419</FONT> return out;<a name="line.419"></a>
|
|
|
423 <FONT color="green">420</FONT> <a name="line.420"></a>
|
|
|
424 <FONT color="green">421</FONT> }<a name="line.421"></a>
|
|
|
425 <FONT color="green">422</FONT> <a name="line.422"></a>
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426 <FONT color="green">423</FONT> /** {@inheritDoc} */<a name="line.423"></a>
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427 <FONT color="green">424</FONT> public void setRowMatrix(final int row, final RealMatrix matrix)<a name="line.424"></a>
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428 <FONT color="green">425</FONT> throws MatrixIndexException, InvalidMatrixException {<a name="line.425"></a>
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429 <FONT color="green">426</FONT> <a name="line.426"></a>
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430 <FONT color="green">427</FONT> MatrixUtils.checkRowIndex(this, row);<a name="line.427"></a>
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431 <FONT color="green">428</FONT> final int nCols = getColumnDimension();<a name="line.428"></a>
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432 <FONT color="green">429</FONT> if ((matrix.getRowDimension() != 1) ||<a name="line.429"></a>
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433 <FONT color="green">430</FONT> (matrix.getColumnDimension() != nCols)) {<a name="line.430"></a>
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434 <FONT color="green">431</FONT> throw new InvalidMatrixException(<a name="line.431"></a>
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|
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435 <FONT color="green">432</FONT> "dimensions mismatch: got {0}x{1} but expected {2}x{3}",<a name="line.432"></a>
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436 <FONT color="green">433</FONT> matrix.getRowDimension(), matrix.getColumnDimension(), 1, nCols);<a name="line.433"></a>
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|
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437 <FONT color="green">434</FONT> }<a name="line.434"></a>
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438 <FONT color="green">435</FONT> for (int i = 0; i < nCols; ++i) {<a name="line.435"></a>
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439 <FONT color="green">436</FONT> setEntry(row, i, matrix.getEntry(0, i));<a name="line.436"></a>
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440 <FONT color="green">437</FONT> }<a name="line.437"></a>
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|
|
441 <FONT color="green">438</FONT> <a name="line.438"></a>
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|
442 <FONT color="green">439</FONT> }<a name="line.439"></a>
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443 <FONT color="green">440</FONT> <a name="line.440"></a>
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444 <FONT color="green">441</FONT> /** {@inheritDoc} */<a name="line.441"></a>
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445 <FONT color="green">442</FONT> public RealMatrix getColumnMatrix(final int column)<a name="line.442"></a>
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446 <FONT color="green">443</FONT> throws MatrixIndexException {<a name="line.443"></a>
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447 <FONT color="green">444</FONT> <a name="line.444"></a>
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448 <FONT color="green">445</FONT> MatrixUtils.checkColumnIndex(this, column);<a name="line.445"></a>
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449 <FONT color="green">446</FONT> final int nRows = getRowDimension();<a name="line.446"></a>
|
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450 <FONT color="green">447</FONT> final RealMatrix out = createMatrix(nRows, 1);<a name="line.447"></a>
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451 <FONT color="green">448</FONT> for (int i = 0; i < nRows; ++i) {<a name="line.448"></a>
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452 <FONT color="green">449</FONT> out.setEntry(i, 0, getEntry(i, column));<a name="line.449"></a>
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453 <FONT color="green">450</FONT> }<a name="line.450"></a>
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454 <FONT color="green">451</FONT> <a name="line.451"></a>
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455 <FONT color="green">452</FONT> return out;<a name="line.452"></a>
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|
456 <FONT color="green">453</FONT> <a name="line.453"></a>
|
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457 <FONT color="green">454</FONT> }<a name="line.454"></a>
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|
458 <FONT color="green">455</FONT> <a name="line.455"></a>
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459 <FONT color="green">456</FONT> /** {@inheritDoc} */<a name="line.456"></a>
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|
460 <FONT color="green">457</FONT> public void setColumnMatrix(final int column, final RealMatrix matrix)<a name="line.457"></a>
|
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|
461 <FONT color="green">458</FONT> throws MatrixIndexException, InvalidMatrixException {<a name="line.458"></a>
|
|
|
462 <FONT color="green">459</FONT> <a name="line.459"></a>
|
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|
463 <FONT color="green">460</FONT> MatrixUtils.checkColumnIndex(this, column);<a name="line.460"></a>
|
|
|
464 <FONT color="green">461</FONT> final int nRows = getRowDimension();<a name="line.461"></a>
|
|
|
465 <FONT color="green">462</FONT> if ((matrix.getRowDimension() != nRows) ||<a name="line.462"></a>
|
|
|
466 <FONT color="green">463</FONT> (matrix.getColumnDimension() != 1)) {<a name="line.463"></a>
|
|
|
467 <FONT color="green">464</FONT> throw new InvalidMatrixException(<a name="line.464"></a>
|
|
|
468 <FONT color="green">465</FONT> "dimensions mismatch: got {0}x{1} but expected {2}x{3}",<a name="line.465"></a>
|
|
|
469 <FONT color="green">466</FONT> matrix.getRowDimension(), matrix.getColumnDimension(), nRows, 1);<a name="line.466"></a>
|
|
|
470 <FONT color="green">467</FONT> }<a name="line.467"></a>
|
|
|
471 <FONT color="green">468</FONT> for (int i = 0; i < nRows; ++i) {<a name="line.468"></a>
|
|
|
472 <FONT color="green">469</FONT> setEntry(i, column, matrix.getEntry(i, 0));<a name="line.469"></a>
|
|
|
473 <FONT color="green">470</FONT> }<a name="line.470"></a>
|
|
|
474 <FONT color="green">471</FONT> <a name="line.471"></a>
|
|
|
475 <FONT color="green">472</FONT> }<a name="line.472"></a>
|
|
|
476 <FONT color="green">473</FONT> <a name="line.473"></a>
|
|
|
477 <FONT color="green">474</FONT> /** {@inheritDoc} */<a name="line.474"></a>
|
|
|
478 <FONT color="green">475</FONT> public RealVector getRowVector(final int row)<a name="line.475"></a>
|
|
|
479 <FONT color="green">476</FONT> throws MatrixIndexException {<a name="line.476"></a>
|
|
|
480 <FONT color="green">477</FONT> return new ArrayRealVector(getRow(row), false);<a name="line.477"></a>
|
|
|
481 <FONT color="green">478</FONT> }<a name="line.478"></a>
|
|
|
482 <FONT color="green">479</FONT> <a name="line.479"></a>
|
|
|
483 <FONT color="green">480</FONT> /** {@inheritDoc} */<a name="line.480"></a>
|
|
|
484 <FONT color="green">481</FONT> public void setRowVector(final int row, final RealVector vector)<a name="line.481"></a>
|
|
|
485 <FONT color="green">482</FONT> throws MatrixIndexException, InvalidMatrixException {<a name="line.482"></a>
|
|
|
486 <FONT color="green">483</FONT> <a name="line.483"></a>
|
|
|
487 <FONT color="green">484</FONT> MatrixUtils.checkRowIndex(this, row);<a name="line.484"></a>
|
|
|
488 <FONT color="green">485</FONT> final int nCols = getColumnDimension();<a name="line.485"></a>
|
|
|
489 <FONT color="green">486</FONT> if (vector.getDimension() != nCols) {<a name="line.486"></a>
|
|
|
490 <FONT color="green">487</FONT> throw new InvalidMatrixException(<a name="line.487"></a>
|
|
|
491 <FONT color="green">488</FONT> "dimensions mismatch: got {0}x{1} but expected {2}x{3}",<a name="line.488"></a>
|
|
|
492 <FONT color="green">489</FONT> 1, vector.getDimension(), 1, nCols);<a name="line.489"></a>
|
|
|
493 <FONT color="green">490</FONT> }<a name="line.490"></a>
|
|
|
494 <FONT color="green">491</FONT> for (int i = 0; i < nCols; ++i) {<a name="line.491"></a>
|
|
|
495 <FONT color="green">492</FONT> setEntry(row, i, vector.getEntry(i));<a name="line.492"></a>
|
|
|
496 <FONT color="green">493</FONT> }<a name="line.493"></a>
|
|
|
497 <FONT color="green">494</FONT> <a name="line.494"></a>
|
|
|
498 <FONT color="green">495</FONT> }<a name="line.495"></a>
|
|
|
499 <FONT color="green">496</FONT> <a name="line.496"></a>
|
|
|
500 <FONT color="green">497</FONT> /** {@inheritDoc} */<a name="line.497"></a>
|
|
|
501 <FONT color="green">498</FONT> public RealVector getColumnVector(final int column)<a name="line.498"></a>
|
|
|
502 <FONT color="green">499</FONT> throws MatrixIndexException {<a name="line.499"></a>
|
|
|
503 <FONT color="green">500</FONT> return new ArrayRealVector(getColumn(column), false);<a name="line.500"></a>
|
|
|
504 <FONT color="green">501</FONT> }<a name="line.501"></a>
|
|
|
505 <FONT color="green">502</FONT> <a name="line.502"></a>
|
|
|
506 <FONT color="green">503</FONT> /** {@inheritDoc} */<a name="line.503"></a>
|
|
|
507 <FONT color="green">504</FONT> public void setColumnVector(final int column, final RealVector vector)<a name="line.504"></a>
|
|
|
508 <FONT color="green">505</FONT> throws MatrixIndexException, InvalidMatrixException {<a name="line.505"></a>
|
|
|
509 <FONT color="green">506</FONT> <a name="line.506"></a>
|
|
|
510 <FONT color="green">507</FONT> MatrixUtils.checkColumnIndex(this, column);<a name="line.507"></a>
|
|
|
511 <FONT color="green">508</FONT> final int nRows = getRowDimension();<a name="line.508"></a>
|
|
|
512 <FONT color="green">509</FONT> if (vector.getDimension() != nRows) {<a name="line.509"></a>
|
|
|
513 <FONT color="green">510</FONT> throw new InvalidMatrixException(<a name="line.510"></a>
|
|
|
514 <FONT color="green">511</FONT> "dimensions mismatch: got {0}x{1} but expected {2}x{3}",<a name="line.511"></a>
|
|
|
515 <FONT color="green">512</FONT> vector.getDimension(), 1, nRows, 1);<a name="line.512"></a>
|
|
|
516 <FONT color="green">513</FONT> }<a name="line.513"></a>
|
|
|
517 <FONT color="green">514</FONT> for (int i = 0; i < nRows; ++i) {<a name="line.514"></a>
|
|
|
518 <FONT color="green">515</FONT> setEntry(i, column, vector.getEntry(i));<a name="line.515"></a>
|
|
|
519 <FONT color="green">516</FONT> }<a name="line.516"></a>
|
|
|
520 <FONT color="green">517</FONT> <a name="line.517"></a>
|
|
|
521 <FONT color="green">518</FONT> }<a name="line.518"></a>
|
|
|
522 <FONT color="green">519</FONT> <a name="line.519"></a>
|
|
|
523 <FONT color="green">520</FONT> /** {@inheritDoc} */<a name="line.520"></a>
|
|
|
524 <FONT color="green">521</FONT> public double[] getRow(final int row)<a name="line.521"></a>
|
|
|
525 <FONT color="green">522</FONT> throws MatrixIndexException {<a name="line.522"></a>
|
|
|
526 <FONT color="green">523</FONT> <a name="line.523"></a>
|
|
|
527 <FONT color="green">524</FONT> MatrixUtils.checkRowIndex(this, row);<a name="line.524"></a>
|
|
|
528 <FONT color="green">525</FONT> final int nCols = getColumnDimension();<a name="line.525"></a>
|
|
|
529 <FONT color="green">526</FONT> final double[] out = new double[nCols];<a name="line.526"></a>
|
|
|
530 <FONT color="green">527</FONT> for (int i = 0; i < nCols; ++i) {<a name="line.527"></a>
|
|
|
531 <FONT color="green">528</FONT> out[i] = getEntry(row, i);<a name="line.528"></a>
|
|
|
532 <FONT color="green">529</FONT> }<a name="line.529"></a>
|
|
|
533 <FONT color="green">530</FONT> <a name="line.530"></a>
|
|
|
534 <FONT color="green">531</FONT> return out;<a name="line.531"></a>
|
|
|
535 <FONT color="green">532</FONT> <a name="line.532"></a>
|
|
|
536 <FONT color="green">533</FONT> }<a name="line.533"></a>
|
|
|
537 <FONT color="green">534</FONT> <a name="line.534"></a>
|
|
|
538 <FONT color="green">535</FONT> /** {@inheritDoc} */<a name="line.535"></a>
|
|
|
539 <FONT color="green">536</FONT> public void setRow(final int row, final double[] array)<a name="line.536"></a>
|
|
|
540 <FONT color="green">537</FONT> throws MatrixIndexException, InvalidMatrixException {<a name="line.537"></a>
|
|
|
541 <FONT color="green">538</FONT> <a name="line.538"></a>
|
|
|
542 <FONT color="green">539</FONT> MatrixUtils.checkRowIndex(this, row);<a name="line.539"></a>
|
|
|
543 <FONT color="green">540</FONT> final int nCols = getColumnDimension();<a name="line.540"></a>
|
|
|
544 <FONT color="green">541</FONT> if (array.length != nCols) {<a name="line.541"></a>
|
|
|
545 <FONT color="green">542</FONT> throw new InvalidMatrixException(<a name="line.542"></a>
|
|
|
546 <FONT color="green">543</FONT> "dimensions mismatch: got {0}x{1} but expected {2}x{3}",<a name="line.543"></a>
|
|
|
547 <FONT color="green">544</FONT> 1, array.length, 1, nCols);<a name="line.544"></a>
|
|
|
548 <FONT color="green">545</FONT> }<a name="line.545"></a>
|
|
|
549 <FONT color="green">546</FONT> for (int i = 0; i < nCols; ++i) {<a name="line.546"></a>
|
|
|
550 <FONT color="green">547</FONT> setEntry(row, i, array[i]);<a name="line.547"></a>
|
|
|
551 <FONT color="green">548</FONT> }<a name="line.548"></a>
|
|
|
552 <FONT color="green">549</FONT> <a name="line.549"></a>
|
|
|
553 <FONT color="green">550</FONT> }<a name="line.550"></a>
|
|
|
554 <FONT color="green">551</FONT> <a name="line.551"></a>
|
|
|
555 <FONT color="green">552</FONT> /** {@inheritDoc} */<a name="line.552"></a>
|
|
|
556 <FONT color="green">553</FONT> public double[] getColumn(final int column)<a name="line.553"></a>
|
|
|
557 <FONT color="green">554</FONT> throws MatrixIndexException {<a name="line.554"></a>
|
|
|
558 <FONT color="green">555</FONT> <a name="line.555"></a>
|
|
|
559 <FONT color="green">556</FONT> MatrixUtils.checkColumnIndex(this, column);<a name="line.556"></a>
|
|
|
560 <FONT color="green">557</FONT> final int nRows = getRowDimension();<a name="line.557"></a>
|
|
|
561 <FONT color="green">558</FONT> final double[] out = new double[nRows];<a name="line.558"></a>
|
|
|
562 <FONT color="green">559</FONT> for (int i = 0; i < nRows; ++i) {<a name="line.559"></a>
|
|
|
563 <FONT color="green">560</FONT> out[i] = getEntry(i, column);<a name="line.560"></a>
|
|
|
564 <FONT color="green">561</FONT> }<a name="line.561"></a>
|
|
|
565 <FONT color="green">562</FONT> <a name="line.562"></a>
|
|
|
566 <FONT color="green">563</FONT> return out;<a name="line.563"></a>
|
|
|
567 <FONT color="green">564</FONT> <a name="line.564"></a>
|
|
|
568 <FONT color="green">565</FONT> }<a name="line.565"></a>
|
|
|
569 <FONT color="green">566</FONT> <a name="line.566"></a>
|
|
|
570 <FONT color="green">567</FONT> /** {@inheritDoc} */<a name="line.567"></a>
|
|
|
571 <FONT color="green">568</FONT> public void setColumn(final int column, final double[] array)<a name="line.568"></a>
|
|
|
572 <FONT color="green">569</FONT> throws MatrixIndexException, InvalidMatrixException {<a name="line.569"></a>
|
|
|
573 <FONT color="green">570</FONT> <a name="line.570"></a>
|
|
|
574 <FONT color="green">571</FONT> MatrixUtils.checkColumnIndex(this, column);<a name="line.571"></a>
|
|
|
575 <FONT color="green">572</FONT> final int nRows = getRowDimension();<a name="line.572"></a>
|
|
|
576 <FONT color="green">573</FONT> if (array.length != nRows) {<a name="line.573"></a>
|
|
|
577 <FONT color="green">574</FONT> throw new InvalidMatrixException(<a name="line.574"></a>
|
|
|
578 <FONT color="green">575</FONT> "dimensions mismatch: got {0}x{1} but expected {2}x{3}",<a name="line.575"></a>
|
|
|
579 <FONT color="green">576</FONT> array.length, 1, nRows, 1);<a name="line.576"></a>
|
|
|
580 <FONT color="green">577</FONT> }<a name="line.577"></a>
|
|
|
581 <FONT color="green">578</FONT> for (int i = 0; i < nRows; ++i) {<a name="line.578"></a>
|
|
|
582 <FONT color="green">579</FONT> setEntry(i, column, array[i]);<a name="line.579"></a>
|
|
|
583 <FONT color="green">580</FONT> }<a name="line.580"></a>
|
|
|
584 <FONT color="green">581</FONT> <a name="line.581"></a>
|
|
|
585 <FONT color="green">582</FONT> }<a name="line.582"></a>
|
|
|
586 <FONT color="green">583</FONT> <a name="line.583"></a>
|
|
|
587 <FONT color="green">584</FONT> /** {@inheritDoc} */<a name="line.584"></a>
|
|
|
588 <FONT color="green">585</FONT> public abstract double getEntry(int row, int column)<a name="line.585"></a>
|
|
|
589 <FONT color="green">586</FONT> throws MatrixIndexException;<a name="line.586"></a>
|
|
|
590 <FONT color="green">587</FONT> <a name="line.587"></a>
|
|
|
591 <FONT color="green">588</FONT> /** {@inheritDoc} */<a name="line.588"></a>
|
|
|
592 <FONT color="green">589</FONT> public abstract void setEntry(int row, int column, double value)<a name="line.589"></a>
|
|
|
593 <FONT color="green">590</FONT> throws MatrixIndexException;<a name="line.590"></a>
|
|
|
594 <FONT color="green">591</FONT> <a name="line.591"></a>
|
|
|
595 <FONT color="green">592</FONT> /** {@inheritDoc} */<a name="line.592"></a>
|
|
|
596 <FONT color="green">593</FONT> public abstract void addToEntry(int row, int column, double increment)<a name="line.593"></a>
|
|
|
597 <FONT color="green">594</FONT> throws MatrixIndexException;<a name="line.594"></a>
|
|
|
598 <FONT color="green">595</FONT> <a name="line.595"></a>
|
|
|
599 <FONT color="green">596</FONT> /** {@inheritDoc} */<a name="line.596"></a>
|
|
|
600 <FONT color="green">597</FONT> public abstract void multiplyEntry(int row, int column, double factor)<a name="line.597"></a>
|
|
|
601 <FONT color="green">598</FONT> throws MatrixIndexException;<a name="line.598"></a>
|
|
|
602 <FONT color="green">599</FONT> <a name="line.599"></a>
|
|
|
603 <FONT color="green">600</FONT> /** {@inheritDoc} */<a name="line.600"></a>
|
|
|
604 <FONT color="green">601</FONT> public RealMatrix transpose() {<a name="line.601"></a>
|
|
|
605 <FONT color="green">602</FONT> <a name="line.602"></a>
|
|
|
606 <FONT color="green">603</FONT> final int nRows = getRowDimension();<a name="line.603"></a>
|
|
|
607 <FONT color="green">604</FONT> final int nCols = getColumnDimension();<a name="line.604"></a>
|
|
|
608 <FONT color="green">605</FONT> final RealMatrix out = createMatrix(nCols, nRows);<a name="line.605"></a>
|
|
|
609 <FONT color="green">606</FONT> walkInOptimizedOrder(new DefaultRealMatrixPreservingVisitor() {<a name="line.606"></a>
|
|
|
610 <FONT color="green">607</FONT> <a name="line.607"></a>
|
|
|
611 <FONT color="green">608</FONT> /** {@inheritDoc} */<a name="line.608"></a>
|
|
|
612 <FONT color="green">609</FONT> @Override<a name="line.609"></a>
|
|
|
613 <FONT color="green">610</FONT> public void visit(final int row, final int column, final double value) {<a name="line.610"></a>
|
|
|
614 <FONT color="green">611</FONT> out.setEntry(column, row, value);<a name="line.611"></a>
|
|
|
615 <FONT color="green">612</FONT> }<a name="line.612"></a>
|
|
|
616 <FONT color="green">613</FONT> <a name="line.613"></a>
|
|
|
617 <FONT color="green">614</FONT> });<a name="line.614"></a>
|
|
|
618 <FONT color="green">615</FONT> <a name="line.615"></a>
|
|
|
619 <FONT color="green">616</FONT> return out;<a name="line.616"></a>
|
|
|
620 <FONT color="green">617</FONT> <a name="line.617"></a>
|
|
|
621 <FONT color="green">618</FONT> }<a name="line.618"></a>
|
|
|
622 <FONT color="green">619</FONT> <a name="line.619"></a>
|
|
|
623 <FONT color="green">620</FONT> /** {@inheritDoc} */<a name="line.620"></a>
|
|
|
624 <FONT color="green">621</FONT> @Deprecated<a name="line.621"></a>
|
|
|
625 <FONT color="green">622</FONT> public RealMatrix inverse()<a name="line.622"></a>
|
|
|
626 <FONT color="green">623</FONT> throws InvalidMatrixException {<a name="line.623"></a>
|
|
|
627 <FONT color="green">624</FONT> if (lu == null) {<a name="line.624"></a>
|
|
|
628 <FONT color="green">625</FONT> lu = new LUDecompositionImpl(this, MathUtils.SAFE_MIN).getSolver();<a name="line.625"></a>
|
|
|
629 <FONT color="green">626</FONT> }<a name="line.626"></a>
|
|
|
630 <FONT color="green">627</FONT> return lu.getInverse();<a name="line.627"></a>
|
|
|
631 <FONT color="green">628</FONT> }<a name="line.628"></a>
|
|
|
632 <FONT color="green">629</FONT> <a name="line.629"></a>
|
|
|
633 <FONT color="green">630</FONT> /** {@inheritDoc} */<a name="line.630"></a>
|
|
|
634 <FONT color="green">631</FONT> @Deprecated<a name="line.631"></a>
|
|
|
635 <FONT color="green">632</FONT> public double getDeterminant()<a name="line.632"></a>
|
|
|
636 <FONT color="green">633</FONT> throws InvalidMatrixException {<a name="line.633"></a>
|
|
|
637 <FONT color="green">634</FONT> return new LUDecompositionImpl(this, MathUtils.SAFE_MIN).getDeterminant();<a name="line.634"></a>
|
|
|
638 <FONT color="green">635</FONT> }<a name="line.635"></a>
|
|
|
639 <FONT color="green">636</FONT> <a name="line.636"></a>
|
|
|
640 <FONT color="green">637</FONT> /** {@inheritDoc} */<a name="line.637"></a>
|
|
|
641 <FONT color="green">638</FONT> public boolean isSquare() {<a name="line.638"></a>
|
|
|
642 <FONT color="green">639</FONT> return getColumnDimension() == getRowDimension();<a name="line.639"></a>
|
|
|
643 <FONT color="green">640</FONT> }<a name="line.640"></a>
|
|
|
644 <FONT color="green">641</FONT> <a name="line.641"></a>
|
|
|
645 <FONT color="green">642</FONT> /** {@inheritDoc} */<a name="line.642"></a>
|
|
|
646 <FONT color="green">643</FONT> @Deprecated<a name="line.643"></a>
|
|
|
647 <FONT color="green">644</FONT> public boolean isSingular() {<a name="line.644"></a>
|
|
|
648 <FONT color="green">645</FONT> if (lu == null) {<a name="line.645"></a>
|
|
|
649 <FONT color="green">646</FONT> lu = new LUDecompositionImpl(this, MathUtils.SAFE_MIN).getSolver();<a name="line.646"></a>
|
|
|
650 <FONT color="green">647</FONT> }<a name="line.647"></a>
|
|
|
651 <FONT color="green">648</FONT> return !lu.isNonSingular();<a name="line.648"></a>
|
|
|
652 <FONT color="green">649</FONT> }<a name="line.649"></a>
|
|
|
653 <FONT color="green">650</FONT> <a name="line.650"></a>
|
|
|
654 <FONT color="green">651</FONT> /** {@inheritDoc} */<a name="line.651"></a>
|
|
|
655 <FONT color="green">652</FONT> public abstract int getRowDimension();<a name="line.652"></a>
|
|
|
656 <FONT color="green">653</FONT> <a name="line.653"></a>
|
|
|
657 <FONT color="green">654</FONT> /** {@inheritDoc} */<a name="line.654"></a>
|
|
|
658 <FONT color="green">655</FONT> public abstract int getColumnDimension();<a name="line.655"></a>
|
|
|
659 <FONT color="green">656</FONT> <a name="line.656"></a>
|
|
|
660 <FONT color="green">657</FONT> /** {@inheritDoc} */<a name="line.657"></a>
|
|
|
661 <FONT color="green">658</FONT> public double getTrace()<a name="line.658"></a>
|
|
|
662 <FONT color="green">659</FONT> throws NonSquareMatrixException {<a name="line.659"></a>
|
|
|
663 <FONT color="green">660</FONT> final int nRows = getRowDimension();<a name="line.660"></a>
|
|
|
664 <FONT color="green">661</FONT> final int nCols = getColumnDimension();<a name="line.661"></a>
|
|
|
665 <FONT color="green">662</FONT> if (nRows != nCols) {<a name="line.662"></a>
|
|
|
666 <FONT color="green">663</FONT> throw new NonSquareMatrixException(nRows, nCols);<a name="line.663"></a>
|
|
|
667 <FONT color="green">664</FONT> }<a name="line.664"></a>
|
|
|
668 <FONT color="green">665</FONT> double trace = 0;<a name="line.665"></a>
|
|
|
669 <FONT color="green">666</FONT> for (int i = 0; i < nRows; ++i) {<a name="line.666"></a>
|
|
|
670 <FONT color="green">667</FONT> trace += getEntry(i, i);<a name="line.667"></a>
|
|
|
671 <FONT color="green">668</FONT> }<a name="line.668"></a>
|
|
|
672 <FONT color="green">669</FONT> return trace;<a name="line.669"></a>
|
|
|
673 <FONT color="green">670</FONT> }<a name="line.670"></a>
|
|
|
674 <FONT color="green">671</FONT> <a name="line.671"></a>
|
|
|
675 <FONT color="green">672</FONT> /** {@inheritDoc} */<a name="line.672"></a>
|
|
|
676 <FONT color="green">673</FONT> public double[] operate(final double[] v)<a name="line.673"></a>
|
|
|
677 <FONT color="green">674</FONT> throws IllegalArgumentException {<a name="line.674"></a>
|
|
|
678 <FONT color="green">675</FONT> <a name="line.675"></a>
|
|
|
679 <FONT color="green">676</FONT> final int nRows = getRowDimension();<a name="line.676"></a>
|
|
|
680 <FONT color="green">677</FONT> final int nCols = getColumnDimension();<a name="line.677"></a>
|
|
|
681 <FONT color="green">678</FONT> if (v.length != nCols) {<a name="line.678"></a>
|
|
|
682 <FONT color="green">679</FONT> throw MathRuntimeException.createIllegalArgumentException(<a name="line.679"></a>
|
|
|
683 <FONT color="green">680</FONT> "vector length mismatch: got {0} but expected {1}",<a name="line.680"></a>
|
|
|
684 <FONT color="green">681</FONT> v.length, nCols);<a name="line.681"></a>
|
|
|
685 <FONT color="green">682</FONT> }<a name="line.682"></a>
|
|
|
686 <FONT color="green">683</FONT> <a name="line.683"></a>
|
|
|
687 <FONT color="green">684</FONT> final double[] out = new double[nRows];<a name="line.684"></a>
|
|
|
688 <FONT color="green">685</FONT> for (int row = 0; row < nRows; ++row) {<a name="line.685"></a>
|
|
|
689 <FONT color="green">686</FONT> double sum = 0;<a name="line.686"></a>
|
|
|
690 <FONT color="green">687</FONT> for (int i = 0; i < nCols; ++i) {<a name="line.687"></a>
|
|
|
691 <FONT color="green">688</FONT> sum += getEntry(row, i) * v[i];<a name="line.688"></a>
|
|
|
692 <FONT color="green">689</FONT> }<a name="line.689"></a>
|
|
|
693 <FONT color="green">690</FONT> out[row] = sum;<a name="line.690"></a>
|
|
|
694 <FONT color="green">691</FONT> }<a name="line.691"></a>
|
|
|
695 <FONT color="green">692</FONT> <a name="line.692"></a>
|
|
|
696 <FONT color="green">693</FONT> return out;<a name="line.693"></a>
|
|
|
697 <FONT color="green">694</FONT> <a name="line.694"></a>
|
|
|
698 <FONT color="green">695</FONT> }<a name="line.695"></a>
|
|
|
699 <FONT color="green">696</FONT> <a name="line.696"></a>
|
|
|
700 <FONT color="green">697</FONT> /** {@inheritDoc} */<a name="line.697"></a>
|
|
|
701 <FONT color="green">698</FONT> public RealVector operate(final RealVector v)<a name="line.698"></a>
|
|
|
702 <FONT color="green">699</FONT> throws IllegalArgumentException {<a name="line.699"></a>
|
|
|
703 <FONT color="green">700</FONT> try {<a name="line.700"></a>
|
|
|
704 <FONT color="green">701</FONT> return new ArrayRealVector(operate(((ArrayRealVector) v).getDataRef()), false);<a name="line.701"></a>
|
|
|
705 <FONT color="green">702</FONT> } catch (ClassCastException cce) {<a name="line.702"></a>
|
|
|
706 <FONT color="green">703</FONT> final int nRows = getRowDimension();<a name="line.703"></a>
|
|
|
707 <FONT color="green">704</FONT> final int nCols = getColumnDimension();<a name="line.704"></a>
|
|
|
708 <FONT color="green">705</FONT> if (v.getDimension() != nCols) {<a name="line.705"></a>
|
|
|
709 <FONT color="green">706</FONT> throw MathRuntimeException.createIllegalArgumentException(<a name="line.706"></a>
|
|
|
710 <FONT color="green">707</FONT> "vector length mismatch: got {0} but expected {1}",<a name="line.707"></a>
|
|
|
711 <FONT color="green">708</FONT> v.getDimension(), nCols);<a name="line.708"></a>
|
|
|
712 <FONT color="green">709</FONT> }<a name="line.709"></a>
|
|
|
713 <FONT color="green">710</FONT> <a name="line.710"></a>
|
|
|
714 <FONT color="green">711</FONT> final double[] out = new double[nRows];<a name="line.711"></a>
|
|
|
715 <FONT color="green">712</FONT> for (int row = 0; row < nRows; ++row) {<a name="line.712"></a>
|
|
|
716 <FONT color="green">713</FONT> double sum = 0;<a name="line.713"></a>
|
|
|
717 <FONT color="green">714</FONT> for (int i = 0; i < nCols; ++i) {<a name="line.714"></a>
|
|
|
718 <FONT color="green">715</FONT> sum += getEntry(row, i) * v.getEntry(i);<a name="line.715"></a>
|
|
|
719 <FONT color="green">716</FONT> }<a name="line.716"></a>
|
|
|
720 <FONT color="green">717</FONT> out[row] = sum;<a name="line.717"></a>
|
|
|
721 <FONT color="green">718</FONT> }<a name="line.718"></a>
|
|
|
722 <FONT color="green">719</FONT> <a name="line.719"></a>
|
|
|
723 <FONT color="green">720</FONT> return new ArrayRealVector(out, false);<a name="line.720"></a>
|
|
|
724 <FONT color="green">721</FONT> }<a name="line.721"></a>
|
|
|
725 <FONT color="green">722</FONT> }<a name="line.722"></a>
|
|
|
726 <FONT color="green">723</FONT> <a name="line.723"></a>
|
|
|
727 <FONT color="green">724</FONT> /** {@inheritDoc} */<a name="line.724"></a>
|
|
|
728 <FONT color="green">725</FONT> public double[] preMultiply(final double[] v)<a name="line.725"></a>
|
|
|
729 <FONT color="green">726</FONT> throws IllegalArgumentException {<a name="line.726"></a>
|
|
|
730 <FONT color="green">727</FONT> <a name="line.727"></a>
|
|
|
731 <FONT color="green">728</FONT> final int nRows = getRowDimension();<a name="line.728"></a>
|
|
|
732 <FONT color="green">729</FONT> final int nCols = getColumnDimension();<a name="line.729"></a>
|
|
|
733 <FONT color="green">730</FONT> if (v.length != nRows) {<a name="line.730"></a>
|
|
|
734 <FONT color="green">731</FONT> throw MathRuntimeException.createIllegalArgumentException(<a name="line.731"></a>
|
|
|
735 <FONT color="green">732</FONT> "vector length mismatch: got {0} but expected {1}",<a name="line.732"></a>
|
|
|
736 <FONT color="green">733</FONT> v.length, nRows);<a name="line.733"></a>
|
|
|
737 <FONT color="green">734</FONT> }<a name="line.734"></a>
|
|
|
738 <FONT color="green">735</FONT> <a name="line.735"></a>
|
|
|
739 <FONT color="green">736</FONT> final double[] out = new double[nCols];<a name="line.736"></a>
|
|
|
740 <FONT color="green">737</FONT> for (int col = 0; col < nCols; ++col) {<a name="line.737"></a>
|
|
|
741 <FONT color="green">738</FONT> double sum = 0;<a name="line.738"></a>
|
|
|
742 <FONT color="green">739</FONT> for (int i = 0; i < nRows; ++i) {<a name="line.739"></a>
|
|
|
743 <FONT color="green">740</FONT> sum += getEntry(i, col) * v[i];<a name="line.740"></a>
|
|
|
744 <FONT color="green">741</FONT> }<a name="line.741"></a>
|
|
|
745 <FONT color="green">742</FONT> out[col] = sum;<a name="line.742"></a>
|
|
|
746 <FONT color="green">743</FONT> }<a name="line.743"></a>
|
|
|
747 <FONT color="green">744</FONT> <a name="line.744"></a>
|
|
|
748 <FONT color="green">745</FONT> return out;<a name="line.745"></a>
|
|
|
749 <FONT color="green">746</FONT> <a name="line.746"></a>
|
|
|
750 <FONT color="green">747</FONT> }<a name="line.747"></a>
|
|
|
751 <FONT color="green">748</FONT> <a name="line.748"></a>
|
|
|
752 <FONT color="green">749</FONT> /** {@inheritDoc} */<a name="line.749"></a>
|
|
|
753 <FONT color="green">750</FONT> public RealVector preMultiply(final RealVector v)<a name="line.750"></a>
|
|
|
754 <FONT color="green">751</FONT> throws IllegalArgumentException {<a name="line.751"></a>
|
|
|
755 <FONT color="green">752</FONT> try {<a name="line.752"></a>
|
|
|
756 <FONT color="green">753</FONT> return new ArrayRealVector(preMultiply(((ArrayRealVector) v).getDataRef()), false);<a name="line.753"></a>
|
|
|
757 <FONT color="green">754</FONT> } catch (ClassCastException cce) {<a name="line.754"></a>
|
|
|
758 <FONT color="green">755</FONT> <a name="line.755"></a>
|
|
|
759 <FONT color="green">756</FONT> final int nRows = getRowDimension();<a name="line.756"></a>
|
|
|
760 <FONT color="green">757</FONT> final int nCols = getColumnDimension();<a name="line.757"></a>
|
|
|
761 <FONT color="green">758</FONT> if (v.getDimension() != nRows) {<a name="line.758"></a>
|
|
|
762 <FONT color="green">759</FONT> throw MathRuntimeException.createIllegalArgumentException(<a name="line.759"></a>
|
|
|
763 <FONT color="green">760</FONT> "vector length mismatch: got {0} but expected {1}",<a name="line.760"></a>
|
|
|
764 <FONT color="green">761</FONT> v.getDimension(), nRows);<a name="line.761"></a>
|
|
|
765 <FONT color="green">762</FONT> }<a name="line.762"></a>
|
|
|
766 <FONT color="green">763</FONT> <a name="line.763"></a>
|
|
|
767 <FONT color="green">764</FONT> final double[] out = new double[nCols];<a name="line.764"></a>
|
|
|
768 <FONT color="green">765</FONT> for (int col = 0; col < nCols; ++col) {<a name="line.765"></a>
|
|
|
769 <FONT color="green">766</FONT> double sum = 0;<a name="line.766"></a>
|
|
|
770 <FONT color="green">767</FONT> for (int i = 0; i < nRows; ++i) {<a name="line.767"></a>
|
|
|
771 <FONT color="green">768</FONT> sum += getEntry(i, col) * v.getEntry(i);<a name="line.768"></a>
|
|
|
772 <FONT color="green">769</FONT> }<a name="line.769"></a>
|
|
|
773 <FONT color="green">770</FONT> out[col] = sum;<a name="line.770"></a>
|
|
|
774 <FONT color="green">771</FONT> }<a name="line.771"></a>
|
|
|
775 <FONT color="green">772</FONT> <a name="line.772"></a>
|
|
|
776 <FONT color="green">773</FONT> return new ArrayRealVector(out);<a name="line.773"></a>
|
|
|
777 <FONT color="green">774</FONT> <a name="line.774"></a>
|
|
|
778 <FONT color="green">775</FONT> }<a name="line.775"></a>
|
|
|
779 <FONT color="green">776</FONT> }<a name="line.776"></a>
|
|
|
780 <FONT color="green">777</FONT> <a name="line.777"></a>
|
|
|
781 <FONT color="green">778</FONT> /** {@inheritDoc} */<a name="line.778"></a>
|
|
|
782 <FONT color="green">779</FONT> public double walkInRowOrder(final RealMatrixChangingVisitor visitor)<a name="line.779"></a>
|
|
|
783 <FONT color="green">780</FONT> throws MatrixVisitorException {<a name="line.780"></a>
|
|
|
784 <FONT color="green">781</FONT> final int rows = getRowDimension();<a name="line.781"></a>
|
|
|
785 <FONT color="green">782</FONT> final int columns = getColumnDimension();<a name="line.782"></a>
|
|
|
786 <FONT color="green">783</FONT> visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);<a name="line.783"></a>
|
|
|
787 <FONT color="green">784</FONT> for (int row = 0; row < rows; ++row) {<a name="line.784"></a>
|
|
|
788 <FONT color="green">785</FONT> for (int column = 0; column < columns; ++column) {<a name="line.785"></a>
|
|
|
789 <FONT color="green">786</FONT> final double oldValue = getEntry(row, column);<a name="line.786"></a>
|
|
|
790 <FONT color="green">787</FONT> final double newValue = visitor.visit(row, column, oldValue);<a name="line.787"></a>
|
|
|
791 <FONT color="green">788</FONT> setEntry(row, column, newValue);<a name="line.788"></a>
|
|
|
792 <FONT color="green">789</FONT> }<a name="line.789"></a>
|
|
|
793 <FONT color="green">790</FONT> }<a name="line.790"></a>
|
|
|
794 <FONT color="green">791</FONT> lu = null;<a name="line.791"></a>
|
|
|
795 <FONT color="green">792</FONT> return visitor.end();<a name="line.792"></a>
|
|
|
796 <FONT color="green">793</FONT> }<a name="line.793"></a>
|
|
|
797 <FONT color="green">794</FONT> <a name="line.794"></a>
|
|
|
798 <FONT color="green">795</FONT> /** {@inheritDoc} */<a name="line.795"></a>
|
|
|
799 <FONT color="green">796</FONT> public double walkInRowOrder(final RealMatrixPreservingVisitor visitor)<a name="line.796"></a>
|
|
|
800 <FONT color="green">797</FONT> throws MatrixVisitorException {<a name="line.797"></a>
|
|
|
801 <FONT color="green">798</FONT> final int rows = getRowDimension();<a name="line.798"></a>
|
|
|
802 <FONT color="green">799</FONT> final int columns = getColumnDimension();<a name="line.799"></a>
|
|
|
803 <FONT color="green">800</FONT> visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);<a name="line.800"></a>
|
|
|
804 <FONT color="green">801</FONT> for (int row = 0; row < rows; ++row) {<a name="line.801"></a>
|
|
|
805 <FONT color="green">802</FONT> for (int column = 0; column < columns; ++column) {<a name="line.802"></a>
|
|
|
806 <FONT color="green">803</FONT> visitor.visit(row, column, getEntry(row, column));<a name="line.803"></a>
|
|
|
807 <FONT color="green">804</FONT> }<a name="line.804"></a>
|
|
|
808 <FONT color="green">805</FONT> }<a name="line.805"></a>
|
|
|
809 <FONT color="green">806</FONT> return visitor.end();<a name="line.806"></a>
|
|
|
810 <FONT color="green">807</FONT> }<a name="line.807"></a>
|
|
|
811 <FONT color="green">808</FONT> <a name="line.808"></a>
|
|
|
812 <FONT color="green">809</FONT> /** {@inheritDoc} */<a name="line.809"></a>
|
|
|
813 <FONT color="green">810</FONT> public double walkInRowOrder(final RealMatrixChangingVisitor visitor,<a name="line.810"></a>
|
|
|
814 <FONT color="green">811</FONT> final int startRow, final int endRow,<a name="line.811"></a>
|
|
|
815 <FONT color="green">812</FONT> final int startColumn, final int endColumn)<a name="line.812"></a>
|
|
|
816 <FONT color="green">813</FONT> throws MatrixIndexException, MatrixVisitorException {<a name="line.813"></a>
|
|
|
817 <FONT color="green">814</FONT> MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);<a name="line.814"></a>
|
|
|
818 <FONT color="green">815</FONT> visitor.start(getRowDimension(), getColumnDimension(),<a name="line.815"></a>
|
|
|
819 <FONT color="green">816</FONT> startRow, endRow, startColumn, endColumn);<a name="line.816"></a>
|
|
|
820 <FONT color="green">817</FONT> for (int row = startRow; row <= endRow; ++row) {<a name="line.817"></a>
|
|
|
821 <FONT color="green">818</FONT> for (int column = startColumn; column <= endColumn; ++column) {<a name="line.818"></a>
|
|
|
822 <FONT color="green">819</FONT> final double oldValue = getEntry(row, column);<a name="line.819"></a>
|
|
|
823 <FONT color="green">820</FONT> final double newValue = visitor.visit(row, column, oldValue);<a name="line.820"></a>
|
|
|
824 <FONT color="green">821</FONT> setEntry(row, column, newValue);<a name="line.821"></a>
|
|
|
825 <FONT color="green">822</FONT> }<a name="line.822"></a>
|
|
|
826 <FONT color="green">823</FONT> }<a name="line.823"></a>
|
|
|
827 <FONT color="green">824</FONT> lu = null;<a name="line.824"></a>
|
|
|
828 <FONT color="green">825</FONT> return visitor.end();<a name="line.825"></a>
|
|
|
829 <FONT color="green">826</FONT> }<a name="line.826"></a>
|
|
|
830 <FONT color="green">827</FONT> <a name="line.827"></a>
|
|
|
831 <FONT color="green">828</FONT> /** {@inheritDoc} */<a name="line.828"></a>
|
|
|
832 <FONT color="green">829</FONT> public double walkInRowOrder(final RealMatrixPreservingVisitor visitor,<a name="line.829"></a>
|
|
|
833 <FONT color="green">830</FONT> final int startRow, final int endRow,<a name="line.830"></a>
|
|
|
834 <FONT color="green">831</FONT> final int startColumn, final int endColumn)<a name="line.831"></a>
|
|
|
835 <FONT color="green">832</FONT> throws MatrixIndexException, MatrixVisitorException {<a name="line.832"></a>
|
|
|
836 <FONT color="green">833</FONT> MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);<a name="line.833"></a>
|
|
|
837 <FONT color="green">834</FONT> visitor.start(getRowDimension(), getColumnDimension(),<a name="line.834"></a>
|
|
|
838 <FONT color="green">835</FONT> startRow, endRow, startColumn, endColumn);<a name="line.835"></a>
|
|
|
839 <FONT color="green">836</FONT> for (int row = startRow; row <= endRow; ++row) {<a name="line.836"></a>
|
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|
840 <FONT color="green">837</FONT> for (int column = startColumn; column <= endColumn; ++column) {<a name="line.837"></a>
|
|
|
841 <FONT color="green">838</FONT> visitor.visit(row, column, getEntry(row, column));<a name="line.838"></a>
|
|
|
842 <FONT color="green">839</FONT> }<a name="line.839"></a>
|
|
|
843 <FONT color="green">840</FONT> }<a name="line.840"></a>
|
|
|
844 <FONT color="green">841</FONT> return visitor.end();<a name="line.841"></a>
|
|
|
845 <FONT color="green">842</FONT> }<a name="line.842"></a>
|
|
|
846 <FONT color="green">843</FONT> <a name="line.843"></a>
|
|
|
847 <FONT color="green">844</FONT> /** {@inheritDoc} */<a name="line.844"></a>
|
|
|
848 <FONT color="green">845</FONT> public double walkInColumnOrder(final RealMatrixChangingVisitor visitor)<a name="line.845"></a>
|
|
|
849 <FONT color="green">846</FONT> throws MatrixVisitorException {<a name="line.846"></a>
|
|
|
850 <FONT color="green">847</FONT> final int rows = getRowDimension();<a name="line.847"></a>
|
|
|
851 <FONT color="green">848</FONT> final int columns = getColumnDimension();<a name="line.848"></a>
|
|
|
852 <FONT color="green">849</FONT> visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);<a name="line.849"></a>
|
|
|
853 <FONT color="green">850</FONT> for (int column = 0; column < columns; ++column) {<a name="line.850"></a>
|
|
|
854 <FONT color="green">851</FONT> for (int row = 0; row < rows; ++row) {<a name="line.851"></a>
|
|
|
855 <FONT color="green">852</FONT> final double oldValue = getEntry(row, column);<a name="line.852"></a>
|
|
|
856 <FONT color="green">853</FONT> final double newValue = visitor.visit(row, column, oldValue);<a name="line.853"></a>
|
|
|
857 <FONT color="green">854</FONT> setEntry(row, column, newValue);<a name="line.854"></a>
|
|
|
858 <FONT color="green">855</FONT> }<a name="line.855"></a>
|
|
|
859 <FONT color="green">856</FONT> }<a name="line.856"></a>
|
|
|
860 <FONT color="green">857</FONT> lu = null;<a name="line.857"></a>
|
|
|
861 <FONT color="green">858</FONT> return visitor.end();<a name="line.858"></a>
|
|
|
862 <FONT color="green">859</FONT> }<a name="line.859"></a>
|
|
|
863 <FONT color="green">860</FONT> <a name="line.860"></a>
|
|
|
864 <FONT color="green">861</FONT> /** {@inheritDoc} */<a name="line.861"></a>
|
|
|
865 <FONT color="green">862</FONT> public double walkInColumnOrder(final RealMatrixPreservingVisitor visitor)<a name="line.862"></a>
|
|
|
866 <FONT color="green">863</FONT> throws MatrixVisitorException {<a name="line.863"></a>
|
|
|
867 <FONT color="green">864</FONT> final int rows = getRowDimension();<a name="line.864"></a>
|
|
|
868 <FONT color="green">865</FONT> final int columns = getColumnDimension();<a name="line.865"></a>
|
|
|
869 <FONT color="green">866</FONT> visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);<a name="line.866"></a>
|
|
|
870 <FONT color="green">867</FONT> for (int column = 0; column < columns; ++column) {<a name="line.867"></a>
|
|
|
871 <FONT color="green">868</FONT> for (int row = 0; row < rows; ++row) {<a name="line.868"></a>
|
|
|
872 <FONT color="green">869</FONT> visitor.visit(row, column, getEntry(row, column));<a name="line.869"></a>
|
|
|
873 <FONT color="green">870</FONT> }<a name="line.870"></a>
|
|
|
874 <FONT color="green">871</FONT> }<a name="line.871"></a>
|
|
|
875 <FONT color="green">872</FONT> return visitor.end();<a name="line.872"></a>
|
|
|
876 <FONT color="green">873</FONT> }<a name="line.873"></a>
|
|
|
877 <FONT color="green">874</FONT> <a name="line.874"></a>
|
|
|
878 <FONT color="green">875</FONT> /** {@inheritDoc} */<a name="line.875"></a>
|
|
|
879 <FONT color="green">876</FONT> public double walkInColumnOrder(final RealMatrixChangingVisitor visitor,<a name="line.876"></a>
|
|
|
880 <FONT color="green">877</FONT> final int startRow, final int endRow,<a name="line.877"></a>
|
|
|
881 <FONT color="green">878</FONT> final int startColumn, final int endColumn)<a name="line.878"></a>
|
|
|
882 <FONT color="green">879</FONT> throws MatrixIndexException, MatrixVisitorException {<a name="line.879"></a>
|
|
|
883 <FONT color="green">880</FONT> MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);<a name="line.880"></a>
|
|
|
884 <FONT color="green">881</FONT> visitor.start(getRowDimension(), getColumnDimension(),<a name="line.881"></a>
|
|
|
885 <FONT color="green">882</FONT> startRow, endRow, startColumn, endColumn);<a name="line.882"></a>
|
|
|
886 <FONT color="green">883</FONT> for (int column = startColumn; column <= endColumn; ++column) {<a name="line.883"></a>
|
|
|
887 <FONT color="green">884</FONT> for (int row = startRow; row <= endRow; ++row) {<a name="line.884"></a>
|
|
|
888 <FONT color="green">885</FONT> final double oldValue = getEntry(row, column);<a name="line.885"></a>
|
|
|
889 <FONT color="green">886</FONT> final double newValue = visitor.visit(row, column, oldValue);<a name="line.886"></a>
|
|
|
890 <FONT color="green">887</FONT> setEntry(row, column, newValue);<a name="line.887"></a>
|
|
|
891 <FONT color="green">888</FONT> }<a name="line.888"></a>
|
|
|
892 <FONT color="green">889</FONT> }<a name="line.889"></a>
|
|
|
893 <FONT color="green">890</FONT> lu = null;<a name="line.890"></a>
|
|
|
894 <FONT color="green">891</FONT> return visitor.end();<a name="line.891"></a>
|
|
|
895 <FONT color="green">892</FONT> }<a name="line.892"></a>
|
|
|
896 <FONT color="green">893</FONT> <a name="line.893"></a>
|
|
|
897 <FONT color="green">894</FONT> /** {@inheritDoc} */<a name="line.894"></a>
|
|
|
898 <FONT color="green">895</FONT> public double walkInColumnOrder(final RealMatrixPreservingVisitor visitor,<a name="line.895"></a>
|
|
|
899 <FONT color="green">896</FONT> final int startRow, final int endRow,<a name="line.896"></a>
|
|
|
900 <FONT color="green">897</FONT> final int startColumn, final int endColumn)<a name="line.897"></a>
|
|
|
901 <FONT color="green">898</FONT> throws MatrixIndexException, MatrixVisitorException {<a name="line.898"></a>
|
|
|
902 <FONT color="green">899</FONT> MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);<a name="line.899"></a>
|
|
|
903 <FONT color="green">900</FONT> visitor.start(getRowDimension(), getColumnDimension(),<a name="line.900"></a>
|
|
|
904 <FONT color="green">901</FONT> startRow, endRow, startColumn, endColumn);<a name="line.901"></a>
|
|
|
905 <FONT color="green">902</FONT> for (int column = startColumn; column <= endColumn; ++column) {<a name="line.902"></a>
|
|
|
906 <FONT color="green">903</FONT> for (int row = startRow; row <= endRow; ++row) {<a name="line.903"></a>
|
|
|
907 <FONT color="green">904</FONT> visitor.visit(row, column, getEntry(row, column));<a name="line.904"></a>
|
|
|
908 <FONT color="green">905</FONT> }<a name="line.905"></a>
|
|
|
909 <FONT color="green">906</FONT> }<a name="line.906"></a>
|
|
|
910 <FONT color="green">907</FONT> return visitor.end();<a name="line.907"></a>
|
|
|
911 <FONT color="green">908</FONT> }<a name="line.908"></a>
|
|
|
912 <FONT color="green">909</FONT> <a name="line.909"></a>
|
|
|
913 <FONT color="green">910</FONT> /** {@inheritDoc} */<a name="line.910"></a>
|
|
|
914 <FONT color="green">911</FONT> public double walkInOptimizedOrder(final RealMatrixChangingVisitor visitor)<a name="line.911"></a>
|
|
|
915 <FONT color="green">912</FONT> throws MatrixVisitorException {<a name="line.912"></a>
|
|
|
916 <FONT color="green">913</FONT> return walkInRowOrder(visitor);<a name="line.913"></a>
|
|
|
917 <FONT color="green">914</FONT> }<a name="line.914"></a>
|
|
|
918 <FONT color="green">915</FONT> <a name="line.915"></a>
|
|
|
919 <FONT color="green">916</FONT> /** {@inheritDoc} */<a name="line.916"></a>
|
|
|
920 <FONT color="green">917</FONT> public double walkInOptimizedOrder(final RealMatrixPreservingVisitor visitor)<a name="line.917"></a>
|
|
|
921 <FONT color="green">918</FONT> throws MatrixVisitorException {<a name="line.918"></a>
|
|
|
922 <FONT color="green">919</FONT> return walkInRowOrder(visitor);<a name="line.919"></a>
|
|
|
923 <FONT color="green">920</FONT> }<a name="line.920"></a>
|
|
|
924 <FONT color="green">921</FONT> <a name="line.921"></a>
|
|
|
925 <FONT color="green">922</FONT> /** {@inheritDoc} */<a name="line.922"></a>
|
|
|
926 <FONT color="green">923</FONT> public double walkInOptimizedOrder(final RealMatrixChangingVisitor visitor,<a name="line.923"></a>
|
|
|
927 <FONT color="green">924</FONT> final int startRow, final int endRow,<a name="line.924"></a>
|
|
|
928 <FONT color="green">925</FONT> final int startColumn, final int endColumn)<a name="line.925"></a>
|
|
|
929 <FONT color="green">926</FONT> throws MatrixIndexException, MatrixVisitorException {<a name="line.926"></a>
|
|
|
930 <FONT color="green">927</FONT> return walkInRowOrder(visitor, startRow, endRow, startColumn, endColumn);<a name="line.927"></a>
|
|
|
931 <FONT color="green">928</FONT> }<a name="line.928"></a>
|
|
|
932 <FONT color="green">929</FONT> <a name="line.929"></a>
|
|
|
933 <FONT color="green">930</FONT> /** {@inheritDoc} */<a name="line.930"></a>
|
|
|
934 <FONT color="green">931</FONT> public double walkInOptimizedOrder(final RealMatrixPreservingVisitor visitor,<a name="line.931"></a>
|
|
|
935 <FONT color="green">932</FONT> final int startRow, final int endRow,<a name="line.932"></a>
|
|
|
936 <FONT color="green">933</FONT> final int startColumn, final int endColumn)<a name="line.933"></a>
|
|
|
937 <FONT color="green">934</FONT> throws MatrixIndexException, MatrixVisitorException {<a name="line.934"></a>
|
|
|
938 <FONT color="green">935</FONT> return walkInRowOrder(visitor, startRow, endRow, startColumn, endColumn);<a name="line.935"></a>
|
|
|
939 <FONT color="green">936</FONT> }<a name="line.936"></a>
|
|
|
940 <FONT color="green">937</FONT> <a name="line.937"></a>
|
|
|
941 <FONT color="green">938</FONT> /** {@inheritDoc} */<a name="line.938"></a>
|
|
|
942 <FONT color="green">939</FONT> @Deprecated<a name="line.939"></a>
|
|
|
943 <FONT color="green">940</FONT> public double[] solve(final double[] b)<a name="line.940"></a>
|
|
|
944 <FONT color="green">941</FONT> throws IllegalArgumentException, InvalidMatrixException {<a name="line.941"></a>
|
|
|
945 <FONT color="green">942</FONT> if (lu == null) {<a name="line.942"></a>
|
|
|
946 <FONT color="green">943</FONT> lu = new LUDecompositionImpl(this, MathUtils.SAFE_MIN).getSolver();<a name="line.943"></a>
|
|
|
947 <FONT color="green">944</FONT> }<a name="line.944"></a>
|
|
|
948 <FONT color="green">945</FONT> return lu.solve(b);<a name="line.945"></a>
|
|
|
949 <FONT color="green">946</FONT> }<a name="line.946"></a>
|
|
|
950 <FONT color="green">947</FONT> <a name="line.947"></a>
|
|
|
951 <FONT color="green">948</FONT> /** {@inheritDoc} */<a name="line.948"></a>
|
|
|
952 <FONT color="green">949</FONT> @Deprecated<a name="line.949"></a>
|
|
|
953 <FONT color="green">950</FONT> public RealMatrix solve(final RealMatrix b)<a name="line.950"></a>
|
|
|
954 <FONT color="green">951</FONT> throws IllegalArgumentException, InvalidMatrixException {<a name="line.951"></a>
|
|
|
955 <FONT color="green">952</FONT> if (lu == null) {<a name="line.952"></a>
|
|
|
956 <FONT color="green">953</FONT> lu = new LUDecompositionImpl(this, MathUtils.SAFE_MIN).getSolver();<a name="line.953"></a>
|
|
|
957 <FONT color="green">954</FONT> }<a name="line.954"></a>
|
|
|
958 <FONT color="green">955</FONT> return lu.solve(b);<a name="line.955"></a>
|
|
|
959 <FONT color="green">956</FONT> }<a name="line.956"></a>
|
|
|
960 <FONT color="green">957</FONT> <a name="line.957"></a>
|
|
|
961 <FONT color="green">958</FONT> /**<a name="line.958"></a>
|
|
|
962 <FONT color="green">959</FONT> * Computes a new<a name="line.959"></a>
|
|
|
963 <FONT color="green">960</FONT> * <a href="http://www.math.gatech.edu/~bourbaki/math2601/Web-notes/2num.pdf"><a name="line.960"></a>
|
|
|
964 <FONT color="green">961</FONT> * LU decomposition</a> for this matrix, storing the result for use by other methods.<a name="line.961"></a>
|
|
|
965 <FONT color="green">962</FONT> * <p><a name="line.962"></a>
|
|
|
966 <FONT color="green">963</FONT> * <strong>Implementation Note</strong>:<br><a name="line.963"></a>
|
|
|
967 <FONT color="green">964</FONT> * Uses <a href="http://www.damtp.cam.ac.uk/user/fdl/people/sd/lectures/nummeth98/linear.htm"><a name="line.964"></a>
|
|
|
968 <FONT color="green">965</FONT> * Crout's algorithm</a>, with partial pivoting.</p><a name="line.965"></a>
|
|
|
969 <FONT color="green">966</FONT> * <p><a name="line.966"></a>
|
|
|
970 <FONT color="green">967</FONT> * <strong>Usage Note</strong>:<br><a name="line.967"></a>
|
|
|
971 <FONT color="green">968</FONT> * This method should rarely be invoked directly. Its only use is<a name="line.968"></a>
|
|
|
972 <FONT color="green">969</FONT> * to force recomputation of the LU decomposition when changes have been<a name="line.969"></a>
|
|
|
973 <FONT color="green">970</FONT> * made to the underlying data using direct array references. Changes<a name="line.970"></a>
|
|
|
974 <FONT color="green">971</FONT> * made using setXxx methods will trigger recomputation when needed<a name="line.971"></a>
|
|
|
975 <FONT color="green">972</FONT> * automatically.</p><a name="line.972"></a>
|
|
|
976 <FONT color="green">973</FONT> *<a name="line.973"></a>
|
|
|
977 <FONT color="green">974</FONT> * @throws InvalidMatrixException if the matrix is non-square or singular.<a name="line.974"></a>
|
|
|
978 <FONT color="green">975</FONT> * @deprecated as of release 2.0, replaced by {@link LUDecomposition}<a name="line.975"></a>
|
|
|
979 <FONT color="green">976</FONT> */<a name="line.976"></a>
|
|
|
980 <FONT color="green">977</FONT> @Deprecated<a name="line.977"></a>
|
|
|
981 <FONT color="green">978</FONT> public void luDecompose()<a name="line.978"></a>
|
|
|
982 <FONT color="green">979</FONT> throws InvalidMatrixException {<a name="line.979"></a>
|
|
|
983 <FONT color="green">980</FONT> if (lu == null) {<a name="line.980"></a>
|
|
|
984 <FONT color="green">981</FONT> lu = new LUDecompositionImpl(this, MathUtils.SAFE_MIN).getSolver();<a name="line.981"></a>
|
|
|
985 <FONT color="green">982</FONT> }<a name="line.982"></a>
|
|
|
986 <FONT color="green">983</FONT> }<a name="line.983"></a>
|
|
|
987 <FONT color="green">984</FONT> <a name="line.984"></a>
|
|
|
988 <FONT color="green">985</FONT> /**<a name="line.985"></a>
|
|
|
989 <FONT color="green">986</FONT> * Get a string representation for this matrix.<a name="line.986"></a>
|
|
|
990 <FONT color="green">987</FONT> * @return a string representation for this matrix<a name="line.987"></a>
|
|
|
991 <FONT color="green">988</FONT> */<a name="line.988"></a>
|
|
|
992 <FONT color="green">989</FONT> @Override<a name="line.989"></a>
|
|
|
993 <FONT color="green">990</FONT> public String toString() {<a name="line.990"></a>
|
|
|
994 <FONT color="green">991</FONT> final int nRows = getRowDimension();<a name="line.991"></a>
|
|
|
995 <FONT color="green">992</FONT> final int nCols = getColumnDimension();<a name="line.992"></a>
|
|
|
996 <FONT color="green">993</FONT> final StringBuffer res = new StringBuffer();<a name="line.993"></a>
|
|
|
997 <FONT color="green">994</FONT> String fullClassName = getClass().getName();<a name="line.994"></a>
|
|
|
998 <FONT color="green">995</FONT> String shortClassName = fullClassName.substring(fullClassName.lastIndexOf('.') + 1);<a name="line.995"></a>
|
|
|
999 <FONT color="green">996</FONT> res.append(shortClassName).append("{");<a name="line.996"></a>
|
|
|
1000 <FONT color="green">997</FONT> <a name="line.997"></a>
|
|
|
1001 <FONT color="green">998</FONT> for (int i = 0; i < nRows; ++i) {<a name="line.998"></a>
|
|
|
1002 <FONT color="green">999</FONT> if (i > 0) {<a name="line.999"></a>
|
|
|
1003 <FONT color="green">1000</FONT> res.append(",");<a name="line.1000"></a>
|
|
|
1004 <FONT color="green">1001</FONT> }<a name="line.1001"></a>
|
|
|
1005 <FONT color="green">1002</FONT> res.append("{");<a name="line.1002"></a>
|
|
|
1006 <FONT color="green">1003</FONT> for (int j = 0; j < nCols; ++j) {<a name="line.1003"></a>
|
|
|
1007 <FONT color="green">1004</FONT> if (j > 0) {<a name="line.1004"></a>
|
|
|
1008 <FONT color="green">1005</FONT> res.append(",");<a name="line.1005"></a>
|
|
|
1009 <FONT color="green">1006</FONT> }<a name="line.1006"></a>
|
|
|
1010 <FONT color="green">1007</FONT> res.append(getEntry(i, j));<a name="line.1007"></a>
|
|
|
1011 <FONT color="green">1008</FONT> }<a name="line.1008"></a>
|
|
|
1012 <FONT color="green">1009</FONT> res.append("}");<a name="line.1009"></a>
|
|
|
1013 <FONT color="green">1010</FONT> }<a name="line.1010"></a>
|
|
|
1014 <FONT color="green">1011</FONT> <a name="line.1011"></a>
|
|
|
1015 <FONT color="green">1012</FONT> res.append("}");<a name="line.1012"></a>
|
|
|
1016 <FONT color="green">1013</FONT> return res.toString();<a name="line.1013"></a>
|
|
|
1017 <FONT color="green">1014</FONT> <a name="line.1014"></a>
|
|
|
1018 <FONT color="green">1015</FONT> }<a name="line.1015"></a>
|
|
|
1019 <FONT color="green">1016</FONT> <a name="line.1016"></a>
|
|
|
1020 <FONT color="green">1017</FONT> /**<a name="line.1017"></a>
|
|
|
1021 <FONT color="green">1018</FONT> * Returns true iff <code>object</code> is a<a name="line.1018"></a>
|
|
|
1022 <FONT color="green">1019</FONT> * <code>RealMatrix</code> instance with the same dimensions as this<a name="line.1019"></a>
|
|
|
1023 <FONT color="green">1020</FONT> * and all corresponding matrix entries are equal.<a name="line.1020"></a>
|
|
|
1024 <FONT color="green">1021</FONT> *<a name="line.1021"></a>
|
|
|
1025 <FONT color="green">1022</FONT> * @param object the object to test equality against.<a name="line.1022"></a>
|
|
|
1026 <FONT color="green">1023</FONT> * @return true if object equals this<a name="line.1023"></a>
|
|
|
1027 <FONT color="green">1024</FONT> */<a name="line.1024"></a>
|
|
|
1028 <FONT color="green">1025</FONT> @Override<a name="line.1025"></a>
|
|
|
1029 <FONT color="green">1026</FONT> public boolean equals(final Object object) {<a name="line.1026"></a>
|
|
|
1030 <FONT color="green">1027</FONT> if (object == this ) {<a name="line.1027"></a>
|
|
|
1031 <FONT color="green">1028</FONT> return true;<a name="line.1028"></a>
|
|
|
1032 <FONT color="green">1029</FONT> }<a name="line.1029"></a>
|
|
|
1033 <FONT color="green">1030</FONT> if (object instanceof RealMatrix == false) {<a name="line.1030"></a>
|
|
|
1034 <FONT color="green">1031</FONT> return false;<a name="line.1031"></a>
|
|
|
1035 <FONT color="green">1032</FONT> }<a name="line.1032"></a>
|
|
|
1036 <FONT color="green">1033</FONT> RealMatrix m = (RealMatrix) object;<a name="line.1033"></a>
|
|
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1037 <FONT color="green">1034</FONT> final int nRows = getRowDimension();<a name="line.1034"></a>
|
|
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1038 <FONT color="green">1035</FONT> final int nCols = getColumnDimension();<a name="line.1035"></a>
|
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|
1039 <FONT color="green">1036</FONT> if (m.getColumnDimension() != nCols || m.getRowDimension() != nRows) {<a name="line.1036"></a>
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1040 <FONT color="green">1037</FONT> return false;<a name="line.1037"></a>
|
|
|
1041 <FONT color="green">1038</FONT> }<a name="line.1038"></a>
|
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|
1042 <FONT color="green">1039</FONT> for (int row = 0; row < nRows; ++row) {<a name="line.1039"></a>
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|
1043 <FONT color="green">1040</FONT> for (int col = 0; col < nCols; ++col) {<a name="line.1040"></a>
|
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|
1044 <FONT color="green">1041</FONT> if (getEntry(row, col) != m.getEntry(row, col)) {<a name="line.1041"></a>
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1045 <FONT color="green">1042</FONT> return false;<a name="line.1042"></a>
|
|
|
1046 <FONT color="green">1043</FONT> }<a name="line.1043"></a>
|
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|
1047 <FONT color="green">1044</FONT> }<a name="line.1044"></a>
|
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|
1048 <FONT color="green">1045</FONT> }<a name="line.1045"></a>
|
|
|
1049 <FONT color="green">1046</FONT> return true;<a name="line.1046"></a>
|
|
|
1050 <FONT color="green">1047</FONT> }<a name="line.1047"></a>
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|
1051 <FONT color="green">1048</FONT> <a name="line.1048"></a>
|
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1052 <FONT color="green">1049</FONT> /**<a name="line.1049"></a>
|
|
|
1053 <FONT color="green">1050</FONT> * Computes a hashcode for the matrix.<a name="line.1050"></a>
|
|
|
1054 <FONT color="green">1051</FONT> *<a name="line.1051"></a>
|
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1055 <FONT color="green">1052</FONT> * @return hashcode for matrix<a name="line.1052"></a>
|
|
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1056 <FONT color="green">1053</FONT> */<a name="line.1053"></a>
|
|
|
1057 <FONT color="green">1054</FONT> @Override<a name="line.1054"></a>
|
|
|
1058 <FONT color="green">1055</FONT> public int hashCode() {<a name="line.1055"></a>
|
|
|
1059 <FONT color="green">1056</FONT> int ret = 7;<a name="line.1056"></a>
|
|
|
1060 <FONT color="green">1057</FONT> final int nRows = getRowDimension();<a name="line.1057"></a>
|
|
|
1061 <FONT color="green">1058</FONT> final int nCols = getColumnDimension();<a name="line.1058"></a>
|
|
|
1062 <FONT color="green">1059</FONT> ret = ret * 31 + nRows;<a name="line.1059"></a>
|
|
|
1063 <FONT color="green">1060</FONT> ret = ret * 31 + nCols;<a name="line.1060"></a>
|
|
|
1064 <FONT color="green">1061</FONT> for (int row = 0; row < nRows; ++row) {<a name="line.1061"></a>
|
|
|
1065 <FONT color="green">1062</FONT> for (int col = 0; col < nCols; ++col) {<a name="line.1062"></a>
|
|
|
1066 <FONT color="green">1063</FONT> ret = ret * 31 + (11 * (row+1) + 17 * (col+1)) *<a name="line.1063"></a>
|
|
|
1067 <FONT color="green">1064</FONT> MathUtils.hash(getEntry(row, col));<a name="line.1064"></a>
|
|
|
1068 <FONT color="green">1065</FONT> }<a name="line.1065"></a>
|
|
|
1069 <FONT color="green">1066</FONT> }<a name="line.1066"></a>
|
|
|
1070 <FONT color="green">1067</FONT> return ret;<a name="line.1067"></a>
|
|
|
1071 <FONT color="green">1068</FONT> }<a name="line.1068"></a>
|
|
|
1072 <FONT color="green">1069</FONT> <a name="line.1069"></a>
|
|
|
1073 <FONT color="green">1070</FONT> }<a name="line.1070"></a>
|
|
|
1074
|
|
|
1075
|
|
|
1076
|
|
|
1077
|
|
|
1078
|
|
|
1079
|
|
|
1080
|
|
|
1081
|
|
|
1082
|
|
|
1083
|
|
|
1084
|
|
|
1085
|
|
|
1086
|
|
|
1087
|
|
|
1088
|
|
|
1089
|
|
|
1090
|
|
|
1091
|
|
|
1092
|
|
|
1093
|
|
|
1094
|
|
|
1095
|
|
|
1096
|
|
|
1097
|
|
|
1098
|
|
|
1099
|
|
|
1100
|
|
|
1101
|
|
|
1102
|
|
|
1103
|
|
|
1104
|
|
|
1105
|
|
|
1106
|
|
|
1107
|
|
|
1108
|
|
|
1109
|
|
|
1110
|
|
|
1111
|
|
|
1112
|
|
|
1113
|
|
|
1114
|
|
|
1115
|
|
|
1116
|
|
|
1117
|
|
|
1118
|
|
|
1119
|
|
|
1120
|
|
|
1121
|
|
|
1122
|
|
|
1123
|
|
|
1124
|
|
|
1125
|
|
|
1126
|
|
|
1127
|
|
|
1128
|
|
|
1129
|
|
|
1130
|
|
|
1131
|
|
|
1132
|
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1133
|
|
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1134 </PRE>
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1135 </BODY>
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1136 </HTML>
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