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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 java.io.Serializable;<a name="line.20"></a>
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24 <FONT color="green">021</FONT> <a name="line.21"></a>
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25 <FONT color="green">022</FONT> import org.apache.commons.math.MathRuntimeException;<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> /**<a name="line.24"></a>
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28 <FONT color="green">025</FONT> * Implementation of RealMatrix using a double[][] array to store entries and<a name="line.25"></a>
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29 <FONT color="green">026</FONT> * <a href="http://www.math.gatech.edu/~bourbaki/math2601/Web-notes/2num.pdf"><a name="line.26"></a>
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30 <FONT color="green">027</FONT> * LU decomposition</a> to support linear system<a name="line.27"></a>
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31 <FONT color="green">028</FONT> * solution and inverse.<a name="line.28"></a>
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32 <FONT color="green">029</FONT> * <p><a name="line.29"></a>
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33 <FONT color="green">030</FONT> * The LU decomposition is performed as needed, to support the following operations: <ul><a name="line.30"></a>
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34 <FONT color="green">031</FONT> * <li>solve</li><a name="line.31"></a>
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35 <FONT color="green">032</FONT> * <li>isSingular</li><a name="line.32"></a>
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36 <FONT color="green">033</FONT> * <li>getDeterminant</li><a name="line.33"></a>
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37 <FONT color="green">034</FONT> * <li>inverse</li> </ul></p><a name="line.34"></a>
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38 <FONT color="green">035</FONT> * <p><a name="line.35"></a>
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39 <FONT color="green">036</FONT> * <strong>Usage notes</strong>:<br><a name="line.36"></a>
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40 <FONT color="green">037</FONT> * <ul><li><a name="line.37"></a>
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41 <FONT color="green">038</FONT> * The LU decomposition is cached and reused on subsequent calls.<a name="line.38"></a>
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42 <FONT color="green">039</FONT> * If data are modified via references to the underlying array obtained using<a name="line.39"></a>
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43 <FONT color="green">040</FONT> * <code>getDataRef()</code>, then the stored LU decomposition will not be<a name="line.40"></a>
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44 <FONT color="green">041</FONT> * discarded. In this case, you need to explicitly invoke<a name="line.41"></a>
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45 <FONT color="green">042</FONT> * <code>LUDecompose()</code> to recompute the decomposition<a name="line.42"></a>
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46 <FONT color="green">043</FONT> * before using any of the methods above.</li><a name="line.43"></a>
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47 <FONT color="green">044</FONT> * <li><a name="line.44"></a>
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48 <FONT color="green">045</FONT> * As specified in the {@link RealMatrix} interface, matrix element indexing<a name="line.45"></a>
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49 <FONT color="green">046</FONT> * is 0-based -- e.g., <code>getEntry(0, 0)</code><a name="line.46"></a>
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50 <FONT color="green">047</FONT> * returns the element in the first row, first column of the matrix.</li></ul><a name="line.47"></a>
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51 <FONT color="green">048</FONT> * </p><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> * @version $Revision: 885278 $ $Date: 2009-11-29 16:47:51 -0500 (Sun, 29 Nov 2009) $<a name="line.50"></a>
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54 <FONT color="green">051</FONT> */<a name="line.51"></a>
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55 <FONT color="green">052</FONT> public class Array2DRowRealMatrix extends AbstractRealMatrix implements Serializable {<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> /** Serializable version identifier */<a name="line.54"></a>
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58 <FONT color="green">055</FONT> private static final long serialVersionUID = -1067294169172445528L;<a name="line.55"></a>
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59 <FONT color="green">056</FONT> <a name="line.56"></a>
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60 <FONT color="green">057</FONT> /** Message for at least one row. */<a name="line.57"></a>
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61 <FONT color="green">058</FONT> private static final String AT_LEAST_ONE_ROW_MESSAGE =<a name="line.58"></a>
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62 <FONT color="green">059</FONT> "matrix must have at least one row";<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> /** Message for at least one column. */<a name="line.61"></a>
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65 <FONT color="green">062</FONT> private static final String AT_LEAST_ONE_COLUMN_MESSAGE =<a name="line.62"></a>
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66 <FONT color="green">063</FONT> "matrix must have at least one column";<a name="line.63"></a>
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67 <FONT color="green">064</FONT> <a name="line.64"></a>
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68 <FONT color="green">065</FONT> /** Message for different rows lengths. */<a name="line.65"></a>
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69 <FONT color="green">066</FONT> private static final String DIFFERENT_ROWS_LENGTHS_MESSAGE =<a name="line.66"></a>
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70 <FONT color="green">067</FONT> "some rows have length {0} while others have length {1}";<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> /** Message for no entry at selected indices. */<a name="line.69"></a>
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73 <FONT color="green">070</FONT> private static final String NO_ENTRY_MESSAGE =<a name="line.70"></a>
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74 <FONT color="green">071</FONT> "no entry at indices ({0}, {1}) in a {2}x{3} matrix";<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> /** Message for vector lengths mismatch. */<a name="line.73"></a>
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77 <FONT color="green">074</FONT> private static final String VECTOR_LENGTHS_MISMATCH =<a name="line.74"></a>
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78 <FONT color="green">075</FONT> "vector length mismatch: got {0} but expected {1}";<a name="line.75"></a>
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79 <FONT color="green">076</FONT> <a name="line.76"></a>
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80 <FONT color="green">077</FONT> /** Entries of the matrix */<a name="line.77"></a>
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81 <FONT color="green">078</FONT> protected double data[][];<a name="line.78"></a>
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82 <FONT color="green">079</FONT> <a name="line.79"></a>
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83 <FONT color="green">080</FONT> /**<a name="line.80"></a>
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84 <FONT color="green">081</FONT> * Creates a matrix with no data<a name="line.81"></a>
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85 <FONT color="green">082</FONT> */<a name="line.82"></a>
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86 <FONT color="green">083</FONT> public Array2DRowRealMatrix() {<a name="line.83"></a>
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87 <FONT color="green">084</FONT> }<a name="line.84"></a>
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88 <FONT color="green">085</FONT> <a name="line.85"></a>
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89 <FONT color="green">086</FONT> /**<a name="line.86"></a>
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90 <FONT color="green">087</FONT> * Create a new RealMatrix with the supplied row and column dimensions.<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> * @param rowDimension the number of rows in the new matrix<a name="line.89"></a>
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93 <FONT color="green">090</FONT> * @param columnDimension the number of columns in the new matrix<a name="line.90"></a>
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94 <FONT color="green">091</FONT> * @throws IllegalArgumentException if row or column dimension is not<a name="line.91"></a>
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95 <FONT color="green">092</FONT> * positive<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> public Array2DRowRealMatrix(final int rowDimension, final int columnDimension)<a name="line.94"></a>
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98 <FONT color="green">095</FONT> throws IllegalArgumentException {<a name="line.95"></a>
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99 <FONT color="green">096</FONT> super(rowDimension, columnDimension);<a name="line.96"></a>
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100 <FONT color="green">097</FONT> data = new double[rowDimension][columnDimension];<a name="line.97"></a>
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101 <FONT color="green">098</FONT> }<a name="line.98"></a>
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102 <FONT color="green">099</FONT> <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> * Create a new RealMatrix using the input array as the underlying<a name="line.101"></a>
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105 <FONT color="green">102</FONT> * data array.<a name="line.102"></a>
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106 <FONT color="green">103</FONT> * <p>The input array is copied, not referenced. This constructor has<a name="line.103"></a>
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107 <FONT color="green">104</FONT> * the same effect as calling {@link #Array2DRowRealMatrix(double[][], boolean)}<a name="line.104"></a>
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108 <FONT color="green">105</FONT> * with the second argument set to <code>true</code>.</p><a name="line.105"></a>
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109 <FONT color="green">106</FONT> *<a name="line.106"></a>
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110 <FONT color="green">107</FONT> * @param d data for new matrix<a name="line.107"></a>
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111 <FONT color="green">108</FONT> * @throws IllegalArgumentException if <code>d</code> is not rectangular<a name="line.108"></a>
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112 <FONT color="green">109</FONT> * (not all rows have the same length) or empty<a name="line.109"></a>
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113 <FONT color="green">110</FONT> * @throws NullPointerException if <code>d</code> is null<a name="line.110"></a>
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114 <FONT color="green">111</FONT> * @see #Array2DRowRealMatrix(double[][], boolean)<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> public Array2DRowRealMatrix(final double[][] d)<a name="line.113"></a>
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117 <FONT color="green">114</FONT> throws IllegalArgumentException, NullPointerException {<a name="line.114"></a>
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118 <FONT color="green">115</FONT> copyIn(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> <a name="line.117"></a>
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121 <FONT color="green">118</FONT> /**<a name="line.118"></a>
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122 <FONT color="green">119</FONT> * Create a new RealMatrix using the input array as the underlying<a name="line.119"></a>
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123 <FONT color="green">120</FONT> * data array.<a name="line.120"></a>
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124 <FONT color="green">121</FONT> * <p>If an array is built specially in order to be embedded in a<a name="line.121"></a>
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125 <FONT color="green">122</FONT> * RealMatrix and not used directly, the <code>copyArray</code> may be<a name="line.122"></a>
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126 <FONT color="green">123</FONT> * set to <code>false</code. This will prevent the copying and improve<a name="line.123"></a>
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127 <FONT color="green">124</FONT> * performance as no new array will be built and no data will be copied.</p><a name="line.124"></a>
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128 <FONT color="green">125</FONT> * @param d data for new matrix<a name="line.125"></a>
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129 <FONT color="green">126</FONT> * @param copyArray if true, the input array will be copied, otherwise<a name="line.126"></a>
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130 <FONT color="green">127</FONT> * it will be referenced<a name="line.127"></a>
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131 <FONT color="green">128</FONT> * @throws IllegalArgumentException if <code>d</code> is not rectangular<a name="line.128"></a>
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132 <FONT color="green">129</FONT> * (not all rows have the same length) or empty<a name="line.129"></a>
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133 <FONT color="green">130</FONT> * @throws NullPointerException if <code>d</code> is null<a name="line.130"></a>
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134 <FONT color="green">131</FONT> * @see #Array2DRowRealMatrix(double[][])<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> public Array2DRowRealMatrix(final double[][] d, final boolean copyArray)<a name="line.133"></a>
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137 <FONT color="green">134</FONT> throws IllegalArgumentException, NullPointerException {<a name="line.134"></a>
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138 <FONT color="green">135</FONT> if (copyArray) {<a name="line.135"></a>
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139 <FONT color="green">136</FONT> copyIn(d);<a name="line.136"></a>
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140 <FONT color="green">137</FONT> } else {<a name="line.137"></a>
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141 <FONT color="green">138</FONT> if (d == null) {<a name="line.138"></a>
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142 <FONT color="green">139</FONT> throw new NullPointerException();<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> final int nRows = d.length;<a name="line.141"></a>
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145 <FONT color="green">142</FONT> if (nRows == 0) {<a name="line.142"></a>
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146 <FONT color="green">143</FONT> throw MathRuntimeException.createIllegalArgumentException(<a name="line.143"></a>
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147 <FONT color="green">144</FONT> AT_LEAST_ONE_ROW_MESSAGE);<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> final int nCols = d[0].length;<a name="line.146"></a>
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150 <FONT color="green">147</FONT> if (nCols == 0) {<a name="line.147"></a>
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151 <FONT color="green">148</FONT> throw MathRuntimeException.createIllegalArgumentException(<a name="line.148"></a>
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152 <FONT color="green">149</FONT> AT_LEAST_ONE_COLUMN_MESSAGE);<a name="line.149"></a>
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153 <FONT color="green">150</FONT> }<a name="line.150"></a>
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154 <FONT color="green">151</FONT> for (int r = 1; r < nRows; r++) {<a name="line.151"></a>
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155 <FONT color="green">152</FONT> if (d[r].length != nCols) {<a name="line.152"></a>
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156 <FONT color="green">153</FONT> throw MathRuntimeException.createIllegalArgumentException(<a name="line.153"></a>
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157 <FONT color="green">154</FONT> DIFFERENT_ROWS_LENGTHS_MESSAGE, nCols, d[r].length);<a name="line.154"></a>
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158 <FONT color="green">155</FONT> }<a name="line.155"></a>
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159 <FONT color="green">156</FONT> }<a name="line.156"></a>
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160 <FONT color="green">157</FONT> data = d;<a name="line.157"></a>
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161 <FONT color="green">158</FONT> }<a name="line.158"></a>
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162 <FONT color="green">159</FONT> }<a name="line.159"></a>
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163 <FONT color="green">160</FONT> <a name="line.160"></a>
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164 <FONT color="green">161</FONT> /**<a name="line.161"></a>
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165 <FONT color="green">162</FONT> * Create a new (column) RealMatrix using <code>v</code> as the<a name="line.162"></a>
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166 <FONT color="green">163</FONT> * data for the unique column of the <code>v.length x 1</code> matrix<a name="line.163"></a>
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167 <FONT color="green">164</FONT> * created.<a name="line.164"></a>
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168 <FONT color="green">165</FONT> * <p>The input array is copied, not referenced.</p><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> * @param v column vector holding data for new matrix<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> public Array2DRowRealMatrix(final double[] v) {<a name="line.169"></a>
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173 <FONT color="green">170</FONT> final int nRows = v.length;<a name="line.170"></a>
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174 <FONT color="green">171</FONT> data = new double[nRows][1];<a name="line.171"></a>
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175 <FONT color="green">172</FONT> for (int row = 0; row < nRows; row++) {<a name="line.172"></a>
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176 <FONT color="green">173</FONT> data[row][0] = v[row];<a name="line.173"></a>
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177 <FONT color="green">174</FONT> }<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> @Override<a name="line.178"></a>
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182 <FONT color="green">179</FONT> public RealMatrix createMatrix(final int rowDimension, final int columnDimension)<a name="line.179"></a>
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183 <FONT color="green">180</FONT> throws IllegalArgumentException {<a name="line.180"></a>
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184 <FONT color="green">181</FONT> return new Array2DRowRealMatrix(rowDimension, columnDimension);<a name="line.181"></a>
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185 <FONT color="green">182</FONT> }<a name="line.182"></a>
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186 <FONT color="green">183</FONT> <a name="line.183"></a>
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187 <FONT color="green">184</FONT> /** {@inheritDoc} */<a name="line.184"></a>
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188 <FONT color="green">185</FONT> @Override<a name="line.185"></a>
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189 <FONT color="green">186</FONT> public RealMatrix copy() {<a name="line.186"></a>
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190 <FONT color="green">187</FONT> return new Array2DRowRealMatrix(copyOut(), false);<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> <a name="line.189"></a>
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193 <FONT color="green">190</FONT> /** {@inheritDoc} */<a name="line.190"></a>
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194 <FONT color="green">191</FONT> @Override<a name="line.191"></a>
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195 <FONT color="green">192</FONT> public RealMatrix add(final RealMatrix m)<a name="line.192"></a>
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196 <FONT color="green">193</FONT> throws IllegalArgumentException {<a name="line.193"></a>
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197 <FONT color="green">194</FONT> try {<a name="line.194"></a>
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198 <FONT color="green">195</FONT> return add((Array2DRowRealMatrix) m);<a name="line.195"></a>
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199 <FONT color="green">196</FONT> } catch (ClassCastException cce) {<a name="line.196"></a>
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200 <FONT color="green">197</FONT> return super.add(m);<a name="line.197"></a>
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201 <FONT color="green">198</FONT> }<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> <a name="line.200"></a>
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204 <FONT color="green">201</FONT> /**<a name="line.201"></a>
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205 <FONT color="green">202</FONT> * Compute the sum of this and <code>m</code>.<a name="line.202"></a>
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206 <FONT color="green">203</FONT> *<a name="line.203"></a>
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207 <FONT color="green">204</FONT> * @param m matrix to be added<a name="line.204"></a>
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208 <FONT color="green">205</FONT> * @return this + m<a name="line.205"></a>
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209 <FONT color="green">206</FONT> * @throws IllegalArgumentException if m is not the same size as this<a name="line.206"></a>
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210 <FONT color="green">207</FONT> */<a name="line.207"></a>
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211 <FONT color="green">208</FONT> public Array2DRowRealMatrix add(final Array2DRowRealMatrix m)<a name="line.208"></a>
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212 <FONT color="green">209</FONT> throws IllegalArgumentException {<a name="line.209"></a>
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213 <FONT color="green">210</FONT> <a name="line.210"></a>
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214 <FONT color="green">211</FONT> // safety check<a name="line.211"></a>
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215 <FONT color="green">212</FONT> MatrixUtils.checkAdditionCompatible(this, m);<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> final int rowCount = getRowDimension();<a name="line.214"></a>
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218 <FONT color="green">215</FONT> final int columnCount = getColumnDimension();<a name="line.215"></a>
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219 <FONT color="green">216</FONT> final double[][] outData = new double[rowCount][columnCount];<a name="line.216"></a>
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220 <FONT color="green">217</FONT> for (int row = 0; row < rowCount; row++) {<a name="line.217"></a>
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221 <FONT color="green">218</FONT> final double[] dataRow = data[row];<a name="line.218"></a>
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222 <FONT color="green">219</FONT> final double[] mRow = m.data[row];<a name="line.219"></a>
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223 <FONT color="green">220</FONT> final double[] outDataRow = outData[row];<a name="line.220"></a>
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224 <FONT color="green">221</FONT> for (int col = 0; col < columnCount; col++) {<a name="line.221"></a>
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225 <FONT color="green">222</FONT> outDataRow[col] = dataRow[col] + mRow[col];<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> }<a name="line.224"></a>
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228 <FONT color="green">225</FONT> <a name="line.225"></a>
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229 <FONT color="green">226</FONT> return new Array2DRowRealMatrix(outData, false);<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> /** {@inheritDoc} */<a name="line.230"></a>
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234 <FONT color="green">231</FONT> @Override<a name="line.231"></a>
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235 <FONT color="green">232</FONT> public RealMatrix subtract(final RealMatrix m)<a name="line.232"></a>
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236 <FONT color="green">233</FONT> throws IllegalArgumentException {<a name="line.233"></a>
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237 <FONT color="green">234</FONT> try {<a name="line.234"></a>
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238 <FONT color="green">235</FONT> return subtract((Array2DRowRealMatrix) m);<a name="line.235"></a>
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239 <FONT color="green">236</FONT> } catch (ClassCastException cce) {<a name="line.236"></a>
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240 <FONT color="green">237</FONT> return super.subtract(m);<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> }<a name="line.239"></a>
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243 <FONT color="green">240</FONT> <a name="line.240"></a>
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244 <FONT color="green">241</FONT> /**<a name="line.241"></a>
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245 <FONT color="green">242</FONT> * Compute this minus <code>m</code>.<a name="line.242"></a>
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246 <FONT color="green">243</FONT> *<a name="line.243"></a>
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247 <FONT color="green">244</FONT> * @param m matrix to be subtracted<a name="line.244"></a>
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|
248 <FONT color="green">245</FONT> * @return this + m<a name="line.245"></a>
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249 <FONT color="green">246</FONT> * @throws IllegalArgumentException if m is not the same size as this<a name="line.246"></a>
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250 <FONT color="green">247</FONT> */<a name="line.247"></a>
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251 <FONT color="green">248</FONT> public Array2DRowRealMatrix subtract(final Array2DRowRealMatrix m)<a name="line.248"></a>
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252 <FONT color="green">249</FONT> throws IllegalArgumentException {<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> // safety check<a name="line.251"></a>
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255 <FONT color="green">252</FONT> MatrixUtils.checkSubtractionCompatible(this, m);<a name="line.252"></a>
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256 <FONT color="green">253</FONT> <a name="line.253"></a>
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257 <FONT color="green">254</FONT> final int rowCount = getRowDimension();<a name="line.254"></a>
|
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|
258 <FONT color="green">255</FONT> final int columnCount = getColumnDimension();<a name="line.255"></a>
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|
259 <FONT color="green">256</FONT> final double[][] outData = new double[rowCount][columnCount];<a name="line.256"></a>
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260 <FONT color="green">257</FONT> for (int row = 0; row < rowCount; row++) {<a name="line.257"></a>
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261 <FONT color="green">258</FONT> final double[] dataRow = data[row];<a name="line.258"></a>
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|
262 <FONT color="green">259</FONT> final double[] mRow = m.data[row];<a name="line.259"></a>
|
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|
263 <FONT color="green">260</FONT> final double[] outDataRow = outData[row];<a name="line.260"></a>
|
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|
264 <FONT color="green">261</FONT> for (int col = 0; col < columnCount; col++) {<a name="line.261"></a>
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|
265 <FONT color="green">262</FONT> outDataRow[col] = dataRow[col] - mRow[col];<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> }<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> return new Array2DRowRealMatrix(outData, false);<a name="line.266"></a>
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|
270 <FONT color="green">267</FONT> <a name="line.267"></a>
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|
271 <FONT color="green">268</FONT> }<a name="line.268"></a>
|
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|
272 <FONT color="green">269</FONT> <a name="line.269"></a>
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|
273 <FONT color="green">270</FONT> /** {@inheritDoc} */<a name="line.270"></a>
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|
274 <FONT color="green">271</FONT> @Override<a name="line.271"></a>
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|
275 <FONT color="green">272</FONT> public RealMatrix multiply(final RealMatrix m)<a name="line.272"></a>
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|
276 <FONT color="green">273</FONT> throws IllegalArgumentException {<a name="line.273"></a>
|
|
|
277 <FONT color="green">274</FONT> try {<a name="line.274"></a>
|
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|
278 <FONT color="green">275</FONT> return multiply((Array2DRowRealMatrix) m);<a name="line.275"></a>
|
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|
279 <FONT color="green">276</FONT> } catch (ClassCastException cce) {<a name="line.276"></a>
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|
280 <FONT color="green">277</FONT> return super.multiply(m);<a name="line.277"></a>
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|
281 <FONT color="green">278</FONT> }<a name="line.278"></a>
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|
282 <FONT color="green">279</FONT> }<a name="line.279"></a>
|
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|
283 <FONT color="green">280</FONT> <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> * Returns the result of postmultiplying this by <code>m</code>.<a name="line.282"></a>
|
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|
286 <FONT color="green">283</FONT> * @param m matrix to postmultiply by<a name="line.283"></a>
|
|
|
287 <FONT color="green">284</FONT> * @return this*m<a name="line.284"></a>
|
|
|
288 <FONT color="green">285</FONT> * @throws IllegalArgumentException<a name="line.285"></a>
|
|
|
289 <FONT color="green">286</FONT> * if columnDimension(this) != rowDimension(m)<a name="line.286"></a>
|
|
|
290 <FONT color="green">287</FONT> */<a name="line.287"></a>
|
|
|
291 <FONT color="green">288</FONT> public Array2DRowRealMatrix multiply(final Array2DRowRealMatrix m)<a name="line.288"></a>
|
|
|
292 <FONT color="green">289</FONT> throws IllegalArgumentException {<a name="line.289"></a>
|
|
|
293 <FONT color="green">290</FONT> <a name="line.290"></a>
|
|
|
294 <FONT color="green">291</FONT> // safety check<a name="line.291"></a>
|
|
|
295 <FONT color="green">292</FONT> MatrixUtils.checkMultiplicationCompatible(this, m);<a name="line.292"></a>
|
|
|
296 <FONT color="green">293</FONT> <a name="line.293"></a>
|
|
|
297 <FONT color="green">294</FONT> final int nRows = this.getRowDimension();<a name="line.294"></a>
|
|
|
298 <FONT color="green">295</FONT> final int nCols = m.getColumnDimension();<a name="line.295"></a>
|
|
|
299 <FONT color="green">296</FONT> final int nSum = this.getColumnDimension();<a name="line.296"></a>
|
|
|
300 <FONT color="green">297</FONT> final double[][] outData = new double[nRows][nCols];<a name="line.297"></a>
|
|
|
301 <FONT color="green">298</FONT> for (int row = 0; row < nRows; row++) {<a name="line.298"></a>
|
|
|
302 <FONT color="green">299</FONT> final double[] dataRow = data[row];<a name="line.299"></a>
|
|
|
303 <FONT color="green">300</FONT> final double[] outDataRow = outData[row];<a name="line.300"></a>
|
|
|
304 <FONT color="green">301</FONT> for (int col = 0; col < nCols; col++) {<a name="line.301"></a>
|
|
|
305 <FONT color="green">302</FONT> double sum = 0;<a name="line.302"></a>
|
|
|
306 <FONT color="green">303</FONT> for (int i = 0; i < nSum; i++) {<a name="line.303"></a>
|
|
|
307 <FONT color="green">304</FONT> sum += dataRow[i] * m.data[i][col];<a name="line.304"></a>
|
|
|
308 <FONT color="green">305</FONT> }<a name="line.305"></a>
|
|
|
309 <FONT color="green">306</FONT> outDataRow[col] = sum;<a name="line.306"></a>
|
|
|
310 <FONT color="green">307</FONT> }<a name="line.307"></a>
|
|
|
311 <FONT color="green">308</FONT> }<a name="line.308"></a>
|
|
|
312 <FONT color="green">309</FONT> <a name="line.309"></a>
|
|
|
313 <FONT color="green">310</FONT> return new Array2DRowRealMatrix(outData, false);<a name="line.310"></a>
|
|
|
314 <FONT color="green">311</FONT> <a name="line.311"></a>
|
|
|
315 <FONT color="green">312</FONT> }<a name="line.312"></a>
|
|
|
316 <FONT color="green">313</FONT> <a name="line.313"></a>
|
|
|
317 <FONT color="green">314</FONT> /** {@inheritDoc} */<a name="line.314"></a>
|
|
|
318 <FONT color="green">315</FONT> @Override<a name="line.315"></a>
|
|
|
319 <FONT color="green">316</FONT> public double[][] getData() {<a name="line.316"></a>
|
|
|
320 <FONT color="green">317</FONT> return copyOut();<a name="line.317"></a>
|
|
|
321 <FONT color="green">318</FONT> }<a name="line.318"></a>
|
|
|
322 <FONT color="green">319</FONT> <a name="line.319"></a>
|
|
|
323 <FONT color="green">320</FONT> /**<a name="line.320"></a>
|
|
|
324 <FONT color="green">321</FONT> * Returns a reference to the underlying data array.<a name="line.321"></a>
|
|
|
325 <FONT color="green">322</FONT> * <p><a name="line.322"></a>
|
|
|
326 <FONT color="green">323</FONT> * Does <strong>not</strong> make a fresh copy of the underlying data.</p><a name="line.323"></a>
|
|
|
327 <FONT color="green">324</FONT> *<a name="line.324"></a>
|
|
|
328 <FONT color="green">325</FONT> * @return 2-dimensional array of entries<a name="line.325"></a>
|
|
|
329 <FONT color="green">326</FONT> */<a name="line.326"></a>
|
|
|
330 <FONT color="green">327</FONT> public double[][] getDataRef() {<a name="line.327"></a>
|
|
|
331 <FONT color="green">328</FONT> return data;<a name="line.328"></a>
|
|
|
332 <FONT color="green">329</FONT> }<a name="line.329"></a>
|
|
|
333 <FONT color="green">330</FONT> <a name="line.330"></a>
|
|
|
334 <FONT color="green">331</FONT> /** {@inheritDoc} */<a name="line.331"></a>
|
|
|
335 <FONT color="green">332</FONT> @Override<a name="line.332"></a>
|
|
|
336 <FONT color="green">333</FONT> public void setSubMatrix(final double[][] subMatrix, final int row, final int column)<a name="line.333"></a>
|
|
|
337 <FONT color="green">334</FONT> throws MatrixIndexException {<a name="line.334"></a>
|
|
|
338 <FONT color="green">335</FONT> if (data == null) {<a name="line.335"></a>
|
|
|
339 <FONT color="green">336</FONT> if (row > 0) {<a name="line.336"></a>
|
|
|
340 <FONT color="green">337</FONT> throw MathRuntimeException.createIllegalStateException(<a name="line.337"></a>
|
|
|
341 <FONT color="green">338</FONT> "first {0} rows are not initialized yet", row);<a name="line.338"></a>
|
|
|
342 <FONT color="green">339</FONT> }<a name="line.339"></a>
|
|
|
343 <FONT color="green">340</FONT> if (column > 0) {<a name="line.340"></a>
|
|
|
344 <FONT color="green">341</FONT> throw MathRuntimeException.createIllegalStateException(<a name="line.341"></a>
|
|
|
345 <FONT color="green">342</FONT> "first {0} columns are not initialized yet", column);<a name="line.342"></a>
|
|
|
346 <FONT color="green">343</FONT> }<a name="line.343"></a>
|
|
|
347 <FONT color="green">344</FONT> final int nRows = subMatrix.length;<a name="line.344"></a>
|
|
|
348 <FONT color="green">345</FONT> if (nRows == 0) {<a name="line.345"></a>
|
|
|
349 <FONT color="green">346</FONT> throw MathRuntimeException.createIllegalArgumentException(<a name="line.346"></a>
|
|
|
350 <FONT color="green">347</FONT> AT_LEAST_ONE_ROW_MESSAGE);<a name="line.347"></a>
|
|
|
351 <FONT color="green">348</FONT> }<a name="line.348"></a>
|
|
|
352 <FONT color="green">349</FONT> <a name="line.349"></a>
|
|
|
353 <FONT color="green">350</FONT> final int nCols = subMatrix[0].length;<a name="line.350"></a>
|
|
|
354 <FONT color="green">351</FONT> if (nCols == 0) {<a name="line.351"></a>
|
|
|
355 <FONT color="green">352</FONT> throw MathRuntimeException.createIllegalArgumentException(<a name="line.352"></a>
|
|
|
356 <FONT color="green">353</FONT> AT_LEAST_ONE_COLUMN_MESSAGE);<a name="line.353"></a>
|
|
|
357 <FONT color="green">354</FONT> }<a name="line.354"></a>
|
|
|
358 <FONT color="green">355</FONT> data = new double[subMatrix.length][nCols];<a name="line.355"></a>
|
|
|
359 <FONT color="green">356</FONT> for (int i = 0; i < data.length; ++i) {<a name="line.356"></a>
|
|
|
360 <FONT color="green">357</FONT> if (subMatrix[i].length != nCols) {<a name="line.357"></a>
|
|
|
361 <FONT color="green">358</FONT> throw MathRuntimeException.createIllegalArgumentException(<a name="line.358"></a>
|
|
|
362 <FONT color="green">359</FONT> DIFFERENT_ROWS_LENGTHS_MESSAGE, nCols, subMatrix[i].length);<a name="line.359"></a>
|
|
|
363 <FONT color="green">360</FONT> }<a name="line.360"></a>
|
|
|
364 <FONT color="green">361</FONT> System.arraycopy(subMatrix[i], 0, data[i + row], column, nCols);<a name="line.361"></a>
|
|
|
365 <FONT color="green">362</FONT> }<a name="line.362"></a>
|
|
|
366 <FONT color="green">363</FONT> } else {<a name="line.363"></a>
|
|
|
367 <FONT color="green">364</FONT> super.setSubMatrix(subMatrix, row, column);<a name="line.364"></a>
|
|
|
368 <FONT color="green">365</FONT> }<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> /** {@inheritDoc} */<a name="line.369"></a>
|
|
|
373 <FONT color="green">370</FONT> @Override<a name="line.370"></a>
|
|
|
374 <FONT color="green">371</FONT> public double getEntry(final int row, final int column)<a name="line.371"></a>
|
|
|
375 <FONT color="green">372</FONT> throws MatrixIndexException {<a name="line.372"></a>
|
|
|
376 <FONT color="green">373</FONT> try {<a name="line.373"></a>
|
|
|
377 <FONT color="green">374</FONT> return data[row][column];<a name="line.374"></a>
|
|
|
378 <FONT color="green">375</FONT> } catch (ArrayIndexOutOfBoundsException e) {<a name="line.375"></a>
|
|
|
379 <FONT color="green">376</FONT> throw new MatrixIndexException(<a name="line.376"></a>
|
|
|
380 <FONT color="green">377</FONT> NO_ENTRY_MESSAGE, row, column, getRowDimension(), getColumnDimension());<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> <a name="line.380"></a>
|
|
|
384 <FONT color="green">381</FONT> /** {@inheritDoc} */<a name="line.381"></a>
|
|
|
385 <FONT color="green">382</FONT> @Override<a name="line.382"></a>
|
|
|
386 <FONT color="green">383</FONT> public void setEntry(final int row, final int column, final double value)<a name="line.383"></a>
|
|
|
387 <FONT color="green">384</FONT> throws MatrixIndexException {<a name="line.384"></a>
|
|
|
388 <FONT color="green">385</FONT> try {<a name="line.385"></a>
|
|
|
389 <FONT color="green">386</FONT> data[row][column] = value;<a name="line.386"></a>
|
|
|
390 <FONT color="green">387</FONT> } catch (ArrayIndexOutOfBoundsException e) {<a name="line.387"></a>
|
|
|
391 <FONT color="green">388</FONT> throw new MatrixIndexException(<a name="line.388"></a>
|
|
|
392 <FONT color="green">389</FONT> NO_ENTRY_MESSAGE, row, column, getRowDimension(), getColumnDimension());<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> /** {@inheritDoc} */<a name="line.393"></a>
|
|
|
397 <FONT color="green">394</FONT> @Override<a name="line.394"></a>
|
|
|
398 <FONT color="green">395</FONT> public void addToEntry(final int row, final int column, final double increment)<a name="line.395"></a>
|
|
|
399 <FONT color="green">396</FONT> throws MatrixIndexException {<a name="line.396"></a>
|
|
|
400 <FONT color="green">397</FONT> try {<a name="line.397"></a>
|
|
|
401 <FONT color="green">398</FONT> data[row][column] += increment;<a name="line.398"></a>
|
|
|
402 <FONT color="green">399</FONT> } catch (ArrayIndexOutOfBoundsException e) {<a name="line.399"></a>
|
|
|
403 <FONT color="green">400</FONT> throw new MatrixIndexException(<a name="line.400"></a>
|
|
|
404 <FONT color="green">401</FONT> NO_ENTRY_MESSAGE, row, column, getRowDimension(), getColumnDimension());<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> <a name="line.404"></a>
|
|
|
408 <FONT color="green">405</FONT> /** {@inheritDoc} */<a name="line.405"></a>
|
|
|
409 <FONT color="green">406</FONT> @Override<a name="line.406"></a>
|
|
|
410 <FONT color="green">407</FONT> public void multiplyEntry(final int row, final int column, final double factor)<a name="line.407"></a>
|
|
|
411 <FONT color="green">408</FONT> throws MatrixIndexException {<a name="line.408"></a>
|
|
|
412 <FONT color="green">409</FONT> try {<a name="line.409"></a>
|
|
|
413 <FONT color="green">410</FONT> data[row][column] *= factor;<a name="line.410"></a>
|
|
|
414 <FONT color="green">411</FONT> } catch (ArrayIndexOutOfBoundsException e) {<a name="line.411"></a>
|
|
|
415 <FONT color="green">412</FONT> throw new MatrixIndexException(<a name="line.412"></a>
|
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416 <FONT color="green">413</FONT> NO_ENTRY_MESSAGE, row, column, getRowDimension(), getColumnDimension());<a name="line.413"></a>
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417 <FONT color="green">414</FONT> }<a name="line.414"></a>
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418 <FONT color="green">415</FONT> }<a name="line.415"></a>
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419 <FONT color="green">416</FONT> <a name="line.416"></a>
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420 <FONT color="green">417</FONT> /** {@inheritDoc} */<a name="line.417"></a>
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421 <FONT color="green">418</FONT> @Override<a name="line.418"></a>
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|
422 <FONT color="green">419</FONT> public int getRowDimension() {<a name="line.419"></a>
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|
423 <FONT color="green">420</FONT> return (data == null) ? 0 : data.length;<a name="line.420"></a>
|
|
|
424 <FONT color="green">421</FONT> }<a name="line.421"></a>
|
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|
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> @Override<a name="line.424"></a>
|
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|
428 <FONT color="green">425</FONT> public int getColumnDimension() {<a name="line.425"></a>
|
|
|
429 <FONT color="green">426</FONT> return ((data == null) || (data[0] == null)) ? 0 : data[0].length;<a name="line.426"></a>
|
|
|
430 <FONT color="green">427</FONT> }<a name="line.427"></a>
|
|
|
431 <FONT color="green">428</FONT> <a name="line.428"></a>
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|
432 <FONT color="green">429</FONT> /** {@inheritDoc} */<a name="line.429"></a>
|
|
|
433 <FONT color="green">430</FONT> @Override<a name="line.430"></a>
|
|
|
434 <FONT color="green">431</FONT> public double[] operate(final double[] v)<a name="line.431"></a>
|
|
|
435 <FONT color="green">432</FONT> throws IllegalArgumentException {<a name="line.432"></a>
|
|
|
436 <FONT color="green">433</FONT> final int nRows = this.getRowDimension();<a name="line.433"></a>
|
|
|
437 <FONT color="green">434</FONT> final int nCols = this.getColumnDimension();<a name="line.434"></a>
|
|
|
438 <FONT color="green">435</FONT> if (v.length != nCols) {<a name="line.435"></a>
|
|
|
439 <FONT color="green">436</FONT> throw MathRuntimeException.createIllegalArgumentException(<a name="line.436"></a>
|
|
|
440 <FONT color="green">437</FONT> VECTOR_LENGTHS_MISMATCH, v.length, nCols);<a name="line.437"></a>
|
|
|
441 <FONT color="green">438</FONT> }<a name="line.438"></a>
|
|
|
442 <FONT color="green">439</FONT> final double[] out = new double[nRows];<a name="line.439"></a>
|
|
|
443 <FONT color="green">440</FONT> for (int row = 0; row < nRows; row++) {<a name="line.440"></a>
|
|
|
444 <FONT color="green">441</FONT> final double[] dataRow = data[row];<a name="line.441"></a>
|
|
|
445 <FONT color="green">442</FONT> double sum = 0;<a name="line.442"></a>
|
|
|
446 <FONT color="green">443</FONT> for (int i = 0; i < nCols; i++) {<a name="line.443"></a>
|
|
|
447 <FONT color="green">444</FONT> sum += dataRow[i] * v[i];<a name="line.444"></a>
|
|
|
448 <FONT color="green">445</FONT> }<a name="line.445"></a>
|
|
|
449 <FONT color="green">446</FONT> out[row] = sum;<a name="line.446"></a>
|
|
|
450 <FONT color="green">447</FONT> }<a name="line.447"></a>
|
|
|
451 <FONT color="green">448</FONT> return out;<a name="line.448"></a>
|
|
|
452 <FONT color="green">449</FONT> }<a name="line.449"></a>
|
|
|
453 <FONT color="green">450</FONT> <a name="line.450"></a>
|
|
|
454 <FONT color="green">451</FONT> /** {@inheritDoc} */<a name="line.451"></a>
|
|
|
455 <FONT color="green">452</FONT> @Override<a name="line.452"></a>
|
|
|
456 <FONT color="green">453</FONT> public double[] preMultiply(final double[] v)<a name="line.453"></a>
|
|
|
457 <FONT color="green">454</FONT> throws IllegalArgumentException {<a name="line.454"></a>
|
|
|
458 <FONT color="green">455</FONT> <a name="line.455"></a>
|
|
|
459 <FONT color="green">456</FONT> final int nRows = getRowDimension();<a name="line.456"></a>
|
|
|
460 <FONT color="green">457</FONT> final int nCols = getColumnDimension();<a name="line.457"></a>
|
|
|
461 <FONT color="green">458</FONT> if (v.length != nRows) {<a name="line.458"></a>
|
|
|
462 <FONT color="green">459</FONT> throw MathRuntimeException.createIllegalArgumentException(<a name="line.459"></a>
|
|
|
463 <FONT color="green">460</FONT> VECTOR_LENGTHS_MISMATCH, v.length, nRows);<a name="line.460"></a>
|
|
|
464 <FONT color="green">461</FONT> }<a name="line.461"></a>
|
|
|
465 <FONT color="green">462</FONT> <a name="line.462"></a>
|
|
|
466 <FONT color="green">463</FONT> final double[] out = new double[nCols];<a name="line.463"></a>
|
|
|
467 <FONT color="green">464</FONT> for (int col = 0; col < nCols; ++col) {<a name="line.464"></a>
|
|
|
468 <FONT color="green">465</FONT> double sum = 0;<a name="line.465"></a>
|
|
|
469 <FONT color="green">466</FONT> for (int i = 0; i < nRows; ++i) {<a name="line.466"></a>
|
|
|
470 <FONT color="green">467</FONT> sum += data[i][col] * v[i];<a name="line.467"></a>
|
|
|
471 <FONT color="green">468</FONT> }<a name="line.468"></a>
|
|
|
472 <FONT color="green">469</FONT> out[col] = sum;<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> return out;<a name="line.472"></a>
|
|
|
476 <FONT color="green">473</FONT> <a name="line.473"></a>
|
|
|
477 <FONT color="green">474</FONT> }<a name="line.474"></a>
|
|
|
478 <FONT color="green">475</FONT> <a name="line.475"></a>
|
|
|
479 <FONT color="green">476</FONT> /** {@inheritDoc} */<a name="line.476"></a>
|
|
|
480 <FONT color="green">477</FONT> @Override<a name="line.477"></a>
|
|
|
481 <FONT color="green">478</FONT> public double walkInRowOrder(final RealMatrixChangingVisitor visitor)<a name="line.478"></a>
|
|
|
482 <FONT color="green">479</FONT> throws MatrixVisitorException {<a name="line.479"></a>
|
|
|
483 <FONT color="green">480</FONT> final int rows = getRowDimension();<a name="line.480"></a>
|
|
|
484 <FONT color="green">481</FONT> final int columns = getColumnDimension();<a name="line.481"></a>
|
|
|
485 <FONT color="green">482</FONT> visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);<a name="line.482"></a>
|
|
|
486 <FONT color="green">483</FONT> for (int i = 0; i < rows; ++i) {<a name="line.483"></a>
|
|
|
487 <FONT color="green">484</FONT> final double[] rowI = data[i];<a name="line.484"></a>
|
|
|
488 <FONT color="green">485</FONT> for (int j = 0; j < columns; ++j) {<a name="line.485"></a>
|
|
|
489 <FONT color="green">486</FONT> rowI[j] = visitor.visit(i, j, rowI[j]);<a name="line.486"></a>
|
|
|
490 <FONT color="green">487</FONT> }<a name="line.487"></a>
|
|
|
491 <FONT color="green">488</FONT> }<a name="line.488"></a>
|
|
|
492 <FONT color="green">489</FONT> return visitor.end();<a name="line.489"></a>
|
|
|
493 <FONT color="green">490</FONT> }<a name="line.490"></a>
|
|
|
494 <FONT color="green">491</FONT> <a name="line.491"></a>
|
|
|
495 <FONT color="green">492</FONT> /** {@inheritDoc} */<a name="line.492"></a>
|
|
|
496 <FONT color="green">493</FONT> @Override<a name="line.493"></a>
|
|
|
497 <FONT color="green">494</FONT> public double walkInRowOrder(final RealMatrixPreservingVisitor visitor)<a name="line.494"></a>
|
|
|
498 <FONT color="green">495</FONT> throws MatrixVisitorException {<a name="line.495"></a>
|
|
|
499 <FONT color="green">496</FONT> final int rows = getRowDimension();<a name="line.496"></a>
|
|
|
500 <FONT color="green">497</FONT> final int columns = getColumnDimension();<a name="line.497"></a>
|
|
|
501 <FONT color="green">498</FONT> visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);<a name="line.498"></a>
|
|
|
502 <FONT color="green">499</FONT> for (int i = 0; i < rows; ++i) {<a name="line.499"></a>
|
|
|
503 <FONT color="green">500</FONT> final double[] rowI = data[i];<a name="line.500"></a>
|
|
|
504 <FONT color="green">501</FONT> for (int j = 0; j < columns; ++j) {<a name="line.501"></a>
|
|
|
505 <FONT color="green">502</FONT> visitor.visit(i, j, rowI[j]);<a name="line.502"></a>
|
|
|
506 <FONT color="green">503</FONT> }<a name="line.503"></a>
|
|
|
507 <FONT color="green">504</FONT> }<a name="line.504"></a>
|
|
|
508 <FONT color="green">505</FONT> return visitor.end();<a name="line.505"></a>
|
|
|
509 <FONT color="green">506</FONT> }<a name="line.506"></a>
|
|
|
510 <FONT color="green">507</FONT> <a name="line.507"></a>
|
|
|
511 <FONT color="green">508</FONT> /** {@inheritDoc} */<a name="line.508"></a>
|
|
|
512 <FONT color="green">509</FONT> @Override<a name="line.509"></a>
|
|
|
513 <FONT color="green">510</FONT> public double walkInRowOrder(final RealMatrixChangingVisitor visitor,<a name="line.510"></a>
|
|
|
514 <FONT color="green">511</FONT> final int startRow, final int endRow,<a name="line.511"></a>
|
|
|
515 <FONT color="green">512</FONT> final int startColumn, final int endColumn)<a name="line.512"></a>
|
|
|
516 <FONT color="green">513</FONT> throws MatrixIndexException, MatrixVisitorException {<a name="line.513"></a>
|
|
|
517 <FONT color="green">514</FONT> MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);<a name="line.514"></a>
|
|
|
518 <FONT color="green">515</FONT> visitor.start(getRowDimension(), getColumnDimension(),<a name="line.515"></a>
|
|
|
519 <FONT color="green">516</FONT> startRow, endRow, startColumn, endColumn);<a name="line.516"></a>
|
|
|
520 <FONT color="green">517</FONT> for (int i = startRow; i <= endRow; ++i) {<a name="line.517"></a>
|
|
|
521 <FONT color="green">518</FONT> final double[] rowI = data[i];<a name="line.518"></a>
|
|
|
522 <FONT color="green">519</FONT> for (int j = startColumn; j <= endColumn; ++j) {<a name="line.519"></a>
|
|
|
523 <FONT color="green">520</FONT> rowI[j] = visitor.visit(i, j, rowI[j]);<a name="line.520"></a>
|
|
|
524 <FONT color="green">521</FONT> }<a name="line.521"></a>
|
|
|
525 <FONT color="green">522</FONT> }<a name="line.522"></a>
|
|
|
526 <FONT color="green">523</FONT> return visitor.end();<a name="line.523"></a>
|
|
|
527 <FONT color="green">524</FONT> }<a name="line.524"></a>
|
|
|
528 <FONT color="green">525</FONT> <a name="line.525"></a>
|
|
|
529 <FONT color="green">526</FONT> /** {@inheritDoc} */<a name="line.526"></a>
|
|
|
530 <FONT color="green">527</FONT> @Override<a name="line.527"></a>
|
|
|
531 <FONT color="green">528</FONT> public double walkInRowOrder(final RealMatrixPreservingVisitor visitor,<a name="line.528"></a>
|
|
|
532 <FONT color="green">529</FONT> final int startRow, final int endRow,<a name="line.529"></a>
|
|
|
533 <FONT color="green">530</FONT> final int startColumn, final int endColumn)<a name="line.530"></a>
|
|
|
534 <FONT color="green">531</FONT> throws MatrixIndexException, MatrixVisitorException {<a name="line.531"></a>
|
|
|
535 <FONT color="green">532</FONT> MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);<a name="line.532"></a>
|
|
|
536 <FONT color="green">533</FONT> visitor.start(getRowDimension(), getColumnDimension(),<a name="line.533"></a>
|
|
|
537 <FONT color="green">534</FONT> startRow, endRow, startColumn, endColumn);<a name="line.534"></a>
|
|
|
538 <FONT color="green">535</FONT> for (int i = startRow; i <= endRow; ++i) {<a name="line.535"></a>
|
|
|
539 <FONT color="green">536</FONT> final double[] rowI = data[i];<a name="line.536"></a>
|
|
|
540 <FONT color="green">537</FONT> for (int j = startColumn; j <= endColumn; ++j) {<a name="line.537"></a>
|
|
|
541 <FONT color="green">538</FONT> visitor.visit(i, j, rowI[j]);<a name="line.538"></a>
|
|
|
542 <FONT color="green">539</FONT> }<a name="line.539"></a>
|
|
|
543 <FONT color="green">540</FONT> }<a name="line.540"></a>
|
|
|
544 <FONT color="green">541</FONT> return visitor.end();<a name="line.541"></a>
|
|
|
545 <FONT color="green">542</FONT> }<a name="line.542"></a>
|
|
|
546 <FONT color="green">543</FONT> <a name="line.543"></a>
|
|
|
547 <FONT color="green">544</FONT> /** {@inheritDoc} */<a name="line.544"></a>
|
|
|
548 <FONT color="green">545</FONT> @Override<a name="line.545"></a>
|
|
|
549 <FONT color="green">546</FONT> public double walkInColumnOrder(final RealMatrixChangingVisitor visitor)<a name="line.546"></a>
|
|
|
550 <FONT color="green">547</FONT> throws MatrixVisitorException {<a name="line.547"></a>
|
|
|
551 <FONT color="green">548</FONT> final int rows = getRowDimension();<a name="line.548"></a>
|
|
|
552 <FONT color="green">549</FONT> final int columns = getColumnDimension();<a name="line.549"></a>
|
|
|
553 <FONT color="green">550</FONT> visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);<a name="line.550"></a>
|
|
|
554 <FONT color="green">551</FONT> for (int j = 0; j < columns; ++j) {<a name="line.551"></a>
|
|
|
555 <FONT color="green">552</FONT> for (int i = 0; i < rows; ++i) {<a name="line.552"></a>
|
|
|
556 <FONT color="green">553</FONT> final double[] rowI = data[i];<a name="line.553"></a>
|
|
|
557 <FONT color="green">554</FONT> rowI[j] = visitor.visit(i, j, rowI[j]);<a name="line.554"></a>
|
|
|
558 <FONT color="green">555</FONT> }<a name="line.555"></a>
|
|
|
559 <FONT color="green">556</FONT> }<a name="line.556"></a>
|
|
|
560 <FONT color="green">557</FONT> return visitor.end();<a name="line.557"></a>
|
|
|
561 <FONT color="green">558</FONT> }<a name="line.558"></a>
|
|
|
562 <FONT color="green">559</FONT> <a name="line.559"></a>
|
|
|
563 <FONT color="green">560</FONT> /** {@inheritDoc} */<a name="line.560"></a>
|
|
|
564 <FONT color="green">561</FONT> @Override<a name="line.561"></a>
|
|
|
565 <FONT color="green">562</FONT> public double walkInColumnOrder(final RealMatrixPreservingVisitor visitor)<a name="line.562"></a>
|
|
|
566 <FONT color="green">563</FONT> throws MatrixVisitorException {<a name="line.563"></a>
|
|
|
567 <FONT color="green">564</FONT> final int rows = getRowDimension();<a name="line.564"></a>
|
|
|
568 <FONT color="green">565</FONT> final int columns = getColumnDimension();<a name="line.565"></a>
|
|
|
569 <FONT color="green">566</FONT> visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);<a name="line.566"></a>
|
|
|
570 <FONT color="green">567</FONT> for (int j = 0; j < columns; ++j) {<a name="line.567"></a>
|
|
|
571 <FONT color="green">568</FONT> for (int i = 0; i < rows; ++i) {<a name="line.568"></a>
|
|
|
572 <FONT color="green">569</FONT> visitor.visit(i, j, data[i][j]);<a name="line.569"></a>
|
|
|
573 <FONT color="green">570</FONT> }<a name="line.570"></a>
|
|
|
574 <FONT color="green">571</FONT> }<a name="line.571"></a>
|
|
|
575 <FONT color="green">572</FONT> return visitor.end();<a name="line.572"></a>
|
|
|
576 <FONT color="green">573</FONT> }<a name="line.573"></a>
|
|
|
577 <FONT color="green">574</FONT> <a name="line.574"></a>
|
|
|
578 <FONT color="green">575</FONT> /** {@inheritDoc} */<a name="line.575"></a>
|
|
|
579 <FONT color="green">576</FONT> @Override<a name="line.576"></a>
|
|
|
580 <FONT color="green">577</FONT> public double walkInColumnOrder(final RealMatrixChangingVisitor visitor,<a name="line.577"></a>
|
|
|
581 <FONT color="green">578</FONT> final int startRow, final int endRow,<a name="line.578"></a>
|
|
|
582 <FONT color="green">579</FONT> final int startColumn, final int endColumn)<a name="line.579"></a>
|
|
|
583 <FONT color="green">580</FONT> throws MatrixIndexException, MatrixVisitorException {<a name="line.580"></a>
|
|
|
584 <FONT color="green">581</FONT> MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);<a name="line.581"></a>
|
|
|
585 <FONT color="green">582</FONT> visitor.start(getRowDimension(), getColumnDimension(),<a name="line.582"></a>
|
|
|
586 <FONT color="green">583</FONT> startRow, endRow, startColumn, endColumn);<a name="line.583"></a>
|
|
|
587 <FONT color="green">584</FONT> for (int j = startColumn; j <= endColumn; ++j) {<a name="line.584"></a>
|
|
|
588 <FONT color="green">585</FONT> for (int i = startRow; i <= endRow; ++i) {<a name="line.585"></a>
|
|
|
589 <FONT color="green">586</FONT> final double[] rowI = data[i];<a name="line.586"></a>
|
|
|
590 <FONT color="green">587</FONT> rowI[j] = visitor.visit(i, j, rowI[j]);<a name="line.587"></a>
|
|
|
591 <FONT color="green">588</FONT> }<a name="line.588"></a>
|
|
|
592 <FONT color="green">589</FONT> }<a name="line.589"></a>
|
|
|
593 <FONT color="green">590</FONT> return visitor.end();<a name="line.590"></a>
|
|
|
594 <FONT color="green">591</FONT> }<a name="line.591"></a>
|
|
|
595 <FONT color="green">592</FONT> <a name="line.592"></a>
|
|
|
596 <FONT color="green">593</FONT> /** {@inheritDoc} */<a name="line.593"></a>
|
|
|
597 <FONT color="green">594</FONT> @Override<a name="line.594"></a>
|
|
|
598 <FONT color="green">595</FONT> public double walkInColumnOrder(final RealMatrixPreservingVisitor visitor,<a name="line.595"></a>
|
|
|
599 <FONT color="green">596</FONT> final int startRow, final int endRow,<a name="line.596"></a>
|
|
|
600 <FONT color="green">597</FONT> final int startColumn, final int endColumn)<a name="line.597"></a>
|
|
|
601 <FONT color="green">598</FONT> throws MatrixIndexException, MatrixVisitorException {<a name="line.598"></a>
|
|
|
602 <FONT color="green">599</FONT> MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);<a name="line.599"></a>
|
|
|
603 <FONT color="green">600</FONT> visitor.start(getRowDimension(), getColumnDimension(),<a name="line.600"></a>
|
|
|
604 <FONT color="green">601</FONT> startRow, endRow, startColumn, endColumn);<a name="line.601"></a>
|
|
|
605 <FONT color="green">602</FONT> for (int j = startColumn; j <= endColumn; ++j) {<a name="line.602"></a>
|
|
|
606 <FONT color="green">603</FONT> for (int i = startRow; i <= endRow; ++i) {<a name="line.603"></a>
|
|
|
607 <FONT color="green">604</FONT> visitor.visit(i, j, data[i][j]);<a name="line.604"></a>
|
|
|
608 <FONT color="green">605</FONT> }<a name="line.605"></a>
|
|
|
609 <FONT color="green">606</FONT> }<a name="line.606"></a>
|
|
|
610 <FONT color="green">607</FONT> return visitor.end();<a name="line.607"></a>
|
|
|
611 <FONT color="green">608</FONT> }<a name="line.608"></a>
|
|
|
612 <FONT color="green">609</FONT> <a name="line.609"></a>
|
|
|
613 <FONT color="green">610</FONT> /**<a name="line.610"></a>
|
|
|
614 <FONT color="green">611</FONT> * Returns a fresh copy of the underlying data array.<a name="line.611"></a>
|
|
|
615 <FONT color="green">612</FONT> *<a name="line.612"></a>
|
|
|
616 <FONT color="green">613</FONT> * @return a copy of the underlying data array.<a name="line.613"></a>
|
|
|
617 <FONT color="green">614</FONT> */<a name="line.614"></a>
|
|
|
618 <FONT color="green">615</FONT> private double[][] copyOut() {<a name="line.615"></a>
|
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|
619 <FONT color="green">616</FONT> final int nRows = this.getRowDimension();<a name="line.616"></a>
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620 <FONT color="green">617</FONT> final double[][] out = new double[nRows][this.getColumnDimension()];<a name="line.617"></a>
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621 <FONT color="green">618</FONT> // can't copy 2-d array in one shot, otherwise get row references<a name="line.618"></a>
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622 <FONT color="green">619</FONT> for (int i = 0; i < nRows; i++) {<a name="line.619"></a>
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623 <FONT color="green">620</FONT> System.arraycopy(data[i], 0, out[i], 0, data[i].length);<a name="line.620"></a>
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624 <FONT color="green">621</FONT> }<a name="line.621"></a>
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625 <FONT color="green">622</FONT> return out;<a name="line.622"></a>
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626 <FONT color="green">623</FONT> }<a name="line.623"></a>
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627 <FONT color="green">624</FONT> <a name="line.624"></a>
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628 <FONT color="green">625</FONT> /**<a name="line.625"></a>
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629 <FONT color="green">626</FONT> * Replaces data with a fresh copy of the input array.<a name="line.626"></a>
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630 <FONT color="green">627</FONT> * <p><a name="line.627"></a>
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631 <FONT color="green">628</FONT> * Verifies that the input array is rectangular and non-empty.</p><a name="line.628"></a>
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632 <FONT color="green">629</FONT> *<a name="line.629"></a>
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633 <FONT color="green">630</FONT> * @param in data to copy in<a name="line.630"></a>
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634 <FONT color="green">631</FONT> * @throws IllegalArgumentException if input array is empty or not<a name="line.631"></a>
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635 <FONT color="green">632</FONT> * rectangular<a name="line.632"></a>
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636 <FONT color="green">633</FONT> * @throws NullPointerException if input array is null<a name="line.633"></a>
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637 <FONT color="green">634</FONT> */<a name="line.634"></a>
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638 <FONT color="green">635</FONT> private void copyIn(final double[][] in) {<a name="line.635"></a>
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639 <FONT color="green">636</FONT> setSubMatrix(in, 0, 0);<a name="line.636"></a>
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640 <FONT color="green">637</FONT> }<a name="line.637"></a>
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641 <FONT color="green">638</FONT> <a name="line.638"></a>
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642 <FONT color="green">639</FONT> }<a name="line.639"></a>
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703 </PRE>
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704 </BODY>
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705 </HTML>
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