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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> package org.apache.commons.math.stat.descriptive;<a name="line.17"></a>
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21 <FONT color="green">018</FONT> <a name="line.18"></a>
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22 <FONT color="green">019</FONT> import java.io.Serializable;<a name="line.19"></a>
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23 <FONT color="green">020</FONT> import java.lang.reflect.InvocationTargetException;<a name="line.20"></a>
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24 <FONT color="green">021</FONT> import java.util.Arrays;<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> import org.apache.commons.math.MathRuntimeException;<a name="line.23"></a>
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27 <FONT color="green">024</FONT> import org.apache.commons.math.stat.descriptive.moment.GeometricMean;<a name="line.24"></a>
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28 <FONT color="green">025</FONT> import org.apache.commons.math.stat.descriptive.moment.Kurtosis;<a name="line.25"></a>
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29 <FONT color="green">026</FONT> import org.apache.commons.math.stat.descriptive.moment.Mean;<a name="line.26"></a>
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30 <FONT color="green">027</FONT> import org.apache.commons.math.stat.descriptive.moment.Skewness;<a name="line.27"></a>
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31 <FONT color="green">028</FONT> import org.apache.commons.math.stat.descriptive.moment.Variance;<a name="line.28"></a>
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32 <FONT color="green">029</FONT> import org.apache.commons.math.stat.descriptive.rank.Max;<a name="line.29"></a>
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33 <FONT color="green">030</FONT> import org.apache.commons.math.stat.descriptive.rank.Min;<a name="line.30"></a>
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34 <FONT color="green">031</FONT> import org.apache.commons.math.stat.descriptive.rank.Percentile;<a name="line.31"></a>
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35 <FONT color="green">032</FONT> import org.apache.commons.math.stat.descriptive.summary.Sum;<a name="line.32"></a>
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36 <FONT color="green">033</FONT> import org.apache.commons.math.stat.descriptive.summary.SumOfSquares;<a name="line.33"></a>
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37 <FONT color="green">034</FONT> import org.apache.commons.math.util.ResizableDoubleArray;<a name="line.34"></a>
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38 <FONT color="green">035</FONT> <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> /**<a name="line.37"></a>
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41 <FONT color="green">038</FONT> * Maintains a dataset of values of a single variable and computes descriptive<a name="line.38"></a>
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42 <FONT color="green">039</FONT> * statistics based on stored data. The {@link #getWindowSize() windowSize}<a name="line.39"></a>
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43 <FONT color="green">040</FONT> * property sets a limit on the number of values that can be stored in the<a name="line.40"></a>
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44 <FONT color="green">041</FONT> * dataset. The default value, INFINITE_WINDOW, puts no limit on the size of<a name="line.41"></a>
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45 <FONT color="green">042</FONT> * the dataset. This value should be used with caution, as the backing store<a name="line.42"></a>
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46 <FONT color="green">043</FONT> * will grow without bound in this case. For very large datasets,<a name="line.43"></a>
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47 <FONT color="green">044</FONT> * {@link SummaryStatistics}, which does not store the dataset, should be used<a name="line.44"></a>
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48 <FONT color="green">045</FONT> * instead of this class. If <code>windowSize</code> is not INFINITE_WINDOW and<a name="line.45"></a>
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49 <FONT color="green">046</FONT> * more values are added than can be stored in the dataset, new values are<a name="line.46"></a>
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50 <FONT color="green">047</FONT> * added in a "rolling" manner, with new values replacing the "oldest" values<a name="line.47"></a>
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51 <FONT color="green">048</FONT> * in the dataset.<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> * <p>Note: this class is not threadsafe. Use<a name="line.50"></a>
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54 <FONT color="green">051</FONT> * {@link SynchronizedDescriptiveStatistics} if concurrent access from multiple<a name="line.51"></a>
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55 <FONT color="green">052</FONT> * threads is required.</p><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> * @version $Revision: 885278 $ $Date: 2009-11-29 16:47:51 -0500 (Sun, 29 Nov 2009) $<a name="line.54"></a>
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58 <FONT color="green">055</FONT> */<a name="line.55"></a>
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59 <FONT color="green">056</FONT> public class DescriptiveStatistics implements StatisticalSummary, Serializable {<a name="line.56"></a>
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60 <FONT color="green">057</FONT> <a name="line.57"></a>
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61 <FONT color="green">058</FONT> /**<a name="line.58"></a>
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62 <FONT color="green">059</FONT> * Represents an infinite window size. When the {@link #getWindowSize()}<a name="line.59"></a>
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63 <FONT color="green">060</FONT> * returns this value, there is no limit to the number of data values<a name="line.60"></a>
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64 <FONT color="green">061</FONT> * that can be stored in the dataset.<a name="line.61"></a>
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65 <FONT color="green">062</FONT> */<a name="line.62"></a>
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66 <FONT color="green">063</FONT> public static final int INFINITE_WINDOW = -1;<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> /** Serialization UID */<a name="line.65"></a>
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69 <FONT color="green">066</FONT> private static final long serialVersionUID = 4133067267405273064L;<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> /** Name of the setQuantile method. */<a name="line.68"></a>
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72 <FONT color="green">069</FONT> private static final String SET_QUANTILE_METHOD_NAME = "setQuantile";<a name="line.69"></a>
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73 <FONT color="green">070</FONT> <a name="line.70"></a>
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74 <FONT color="green">071</FONT> /** Message for unsupported setQuantile. */<a name="line.71"></a>
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75 <FONT color="green">072</FONT> private static final String UNSUPPORTED_METHOD_MESSAGE =<a name="line.72"></a>
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76 <FONT color="green">073</FONT> "percentile implementation {0} does not support {1}";<a name="line.73"></a>
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77 <FONT color="green">074</FONT> <a name="line.74"></a>
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78 <FONT color="green">075</FONT> /** Message for illegal accesson setquantile. */<a name="line.75"></a>
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79 <FONT color="green">076</FONT> private static final String ILLEGAL_ACCESS_MESSAGE =<a name="line.76"></a>
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80 <FONT color="green">077</FONT> "cannot access {0} method in percentile implementation {1}";<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> /** hold the window size **/<a name="line.79"></a>
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83 <FONT color="green">080</FONT> protected int windowSize = INFINITE_WINDOW;<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> /**<a name="line.82"></a>
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86 <FONT color="green">083</FONT> * Stored data values<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> protected ResizableDoubleArray eDA = new ResizableDoubleArray();<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> /** Mean statistic implementation - can be reset by setter. */<a name="line.87"></a>
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91 <FONT color="green">088</FONT> private UnivariateStatistic meanImpl = new Mean();<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> /** Geometric mean statistic implementation - can be reset by setter. */<a name="line.90"></a>
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94 <FONT color="green">091</FONT> private UnivariateStatistic geometricMeanImpl = new GeometricMean();<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> /** Kurtosis statistic implementation - can be reset by setter. */<a name="line.93"></a>
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97 <FONT color="green">094</FONT> private UnivariateStatistic kurtosisImpl = new Kurtosis();<a name="line.94"></a>
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98 <FONT color="green">095</FONT> <a name="line.95"></a>
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99 <FONT color="green">096</FONT> /** Maximum statistic implementation - can be reset by setter. */<a name="line.96"></a>
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100 <FONT color="green">097</FONT> private UnivariateStatistic maxImpl = new Max();<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> /** Minimum statistic implementation - can be reset by setter. */<a name="line.99"></a>
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103 <FONT color="green">100</FONT> private UnivariateStatistic minImpl = new Min();<a name="line.100"></a>
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104 <FONT color="green">101</FONT> <a name="line.101"></a>
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105 <FONT color="green">102</FONT> /** Percentile statistic implementation - can be reset by setter. */<a name="line.102"></a>
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106 <FONT color="green">103</FONT> private UnivariateStatistic percentileImpl = new Percentile();<a name="line.103"></a>
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107 <FONT color="green">104</FONT> <a name="line.104"></a>
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108 <FONT color="green">105</FONT> /** Skewness statistic implementation - can be reset by setter. */<a name="line.105"></a>
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109 <FONT color="green">106</FONT> private UnivariateStatistic skewnessImpl = new Skewness();<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> /** Variance statistic implementation - can be reset by setter. */<a name="line.108"></a>
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112 <FONT color="green">109</FONT> private UnivariateStatistic varianceImpl = new Variance();<a name="line.109"></a>
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113 <FONT color="green">110</FONT> <a name="line.110"></a>
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114 <FONT color="green">111</FONT> /** Sum of squares statistic implementation - can be reset by setter. */<a name="line.111"></a>
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115 <FONT color="green">112</FONT> private UnivariateStatistic sumsqImpl = new SumOfSquares();<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> /** Sum statistic implementation - can be reset by setter. */<a name="line.114"></a>
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118 <FONT color="green">115</FONT> private UnivariateStatistic sumImpl = new Sum();<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> * Construct a DescriptiveStatistics instance with an infinite window<a name="line.118"></a>
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122 <FONT color="green">119</FONT> */<a name="line.119"></a>
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123 <FONT color="green">120</FONT> public DescriptiveStatistics() {<a name="line.120"></a>
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124 <FONT color="green">121</FONT> }<a name="line.121"></a>
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125 <FONT color="green">122</FONT> <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> * Construct a DescriptiveStatistics instance with the specified window<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> * @param window the window size.<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> public DescriptiveStatistics(int window) {<a name="line.128"></a>
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132 <FONT color="green">129</FONT> setWindowSize(window);<a name="line.129"></a>
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133 <FONT color="green">130</FONT> }<a name="line.130"></a>
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134 <FONT color="green">131</FONT> <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> * Copy constructor. Construct a new DescriptiveStatistics instance that<a name="line.133"></a>
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137 <FONT color="green">134</FONT> * is a copy of original.<a name="line.134"></a>
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138 <FONT color="green">135</FONT> *<a name="line.135"></a>
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139 <FONT color="green">136</FONT> * @param original DescriptiveStatistics instance to copy<a name="line.136"></a>
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140 <FONT color="green">137</FONT> */<a name="line.137"></a>
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141 <FONT color="green">138</FONT> public DescriptiveStatistics(DescriptiveStatistics original) {<a name="line.138"></a>
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142 <FONT color="green">139</FONT> copy(original, this);<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> /**<a name="line.142"></a>
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146 <FONT color="green">143</FONT> * Adds the value to the dataset. If the dataset is at the maximum size<a name="line.143"></a>
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147 <FONT color="green">144</FONT> * (i.e., the number of stored elements equals the currently configured<a name="line.144"></a>
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148 <FONT color="green">145</FONT> * windowSize), the first (oldest) element in the dataset is discarded<a name="line.145"></a>
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149 <FONT color="green">146</FONT> * to make room for the new value.<a name="line.146"></a>
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150 <FONT color="green">147</FONT> *<a name="line.147"></a>
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151 <FONT color="green">148</FONT> * @param v the value to be added<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> public void addValue(double v) {<a name="line.150"></a>
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154 <FONT color="green">151</FONT> if (windowSize != INFINITE_WINDOW) {<a name="line.151"></a>
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155 <FONT color="green">152</FONT> if (getN() == windowSize) {<a name="line.152"></a>
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156 <FONT color="green">153</FONT> eDA.addElementRolling(v);<a name="line.153"></a>
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157 <FONT color="green">154</FONT> } else if (getN() < windowSize) {<a name="line.154"></a>
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158 <FONT color="green">155</FONT> eDA.addElement(v);<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> } else {<a name="line.157"></a>
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161 <FONT color="green">158</FONT> eDA.addElement(v);<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> /**<a name="line.162"></a>
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166 <FONT color="green">163</FONT> * Removes the most recent value from the dataset.<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> public void removeMostRecentValue() {<a name="line.165"></a>
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169 <FONT color="green">166</FONT> eDA.discardMostRecentElements(1);<a name="line.166"></a>
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170 <FONT color="green">167</FONT> }<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> * Replaces the most recently stored value with the given value.<a name="line.170"></a>
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174 <FONT color="green">171</FONT> * There must be at least one element stored to call this method.<a name="line.171"></a>
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175 <FONT color="green">172</FONT> *<a name="line.172"></a>
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176 <FONT color="green">173</FONT> * @param v the value to replace the most recent stored value<a name="line.173"></a>
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177 <FONT color="green">174</FONT> * @return replaced value<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> public double replaceMostRecentValue(double v) {<a name="line.176"></a>
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180 <FONT color="green">177</FONT> return eDA.substituteMostRecentElement(v);<a name="line.177"></a>
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181 <FONT color="green">178</FONT> }<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> /**<a name="line.180"></a>
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184 <FONT color="green">181</FONT> * Returns the <a href="http://www.xycoon.com/arithmetic_mean.htm"><a name="line.181"></a>
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185 <FONT color="green">182</FONT> * arithmetic mean </a> of the available values<a name="line.182"></a>
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186 <FONT color="green">183</FONT> * @return The mean or Double.NaN if no values have been added.<a name="line.183"></a>
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187 <FONT color="green">184</FONT> */<a name="line.184"></a>
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188 <FONT color="green">185</FONT> public double getMean() {<a name="line.185"></a>
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189 <FONT color="green">186</FONT> return apply(meanImpl);<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> /**<a name="line.189"></a>
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193 <FONT color="green">190</FONT> * Returns the <a href="http://www.xycoon.com/geometric_mean.htm"><a name="line.190"></a>
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194 <FONT color="green">191</FONT> * geometric mean </a> of the available values<a name="line.191"></a>
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195 <FONT color="green">192</FONT> * @return The geometricMean, Double.NaN if no values have been added,<a name="line.192"></a>
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196 <FONT color="green">193</FONT> * or if the product of the available values is less than or equal to 0.<a name="line.193"></a>
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197 <FONT color="green">194</FONT> */<a name="line.194"></a>
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198 <FONT color="green">195</FONT> public double getGeometricMean() {<a name="line.195"></a>
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199 <FONT color="green">196</FONT> return apply(geometricMeanImpl);<a name="line.196"></a>
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200 <FONT color="green">197</FONT> }<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> * Returns the variance of the available values.<a name="line.200"></a>
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204 <FONT color="green">201</FONT> * @return The variance, Double.NaN if no values have been added<a name="line.201"></a>
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205 <FONT color="green">202</FONT> * or 0.0 for a single value set.<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> public double getVariance() {<a name="line.204"></a>
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208 <FONT color="green">205</FONT> return apply(varianceImpl);<a name="line.205"></a>
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209 <FONT color="green">206</FONT> }<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> /**<a name="line.208"></a>
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212 <FONT color="green">209</FONT> * Returns the standard deviation of the available values.<a name="line.209"></a>
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213 <FONT color="green">210</FONT> * @return The standard deviation, Double.NaN if no values have been added<a name="line.210"></a>
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214 <FONT color="green">211</FONT> * or 0.0 for a single value set.<a name="line.211"></a>
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215 <FONT color="green">212</FONT> */<a name="line.212"></a>
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216 <FONT color="green">213</FONT> public double getStandardDeviation() {<a name="line.213"></a>
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217 <FONT color="green">214</FONT> double stdDev = Double.NaN;<a name="line.214"></a>
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218 <FONT color="green">215</FONT> if (getN() > 0) {<a name="line.215"></a>
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219 <FONT color="green">216</FONT> if (getN() > 1) {<a name="line.216"></a>
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220 <FONT color="green">217</FONT> stdDev = Math.sqrt(getVariance());<a name="line.217"></a>
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221 <FONT color="green">218</FONT> } else {<a name="line.218"></a>
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222 <FONT color="green">219</FONT> stdDev = 0.0;<a name="line.219"></a>
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223 <FONT color="green">220</FONT> }<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> return stdDev;<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> * Returns the skewness of the available values. Skewness is a<a name="line.226"></a>
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230 <FONT color="green">227</FONT> * measure of the asymmetry of a given distribution.<a name="line.227"></a>
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231 <FONT color="green">228</FONT> * @return The skewness, Double.NaN if no values have been added<a name="line.228"></a>
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232 <FONT color="green">229</FONT> * or 0.0 for a value set &lt;=2.<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> public double getSkewness() {<a name="line.231"></a>
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235 <FONT color="green">232</FONT> return apply(skewnessImpl);<a name="line.232"></a>
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236 <FONT color="green">233</FONT> }<a name="line.233"></a>
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237 <FONT color="green">234</FONT> <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> * Returns the Kurtosis of the available values. Kurtosis is a<a name="line.236"></a>
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240 <FONT color="green">237</FONT> * measure of the "peakedness" of a distribution<a name="line.237"></a>
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241 <FONT color="green">238</FONT> * @return The kurtosis, Double.NaN if no values have been added, or 0.0<a name="line.238"></a>
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242 <FONT color="green">239</FONT> * for a value set &lt;=3.<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> public double getKurtosis() {<a name="line.241"></a>
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245 <FONT color="green">242</FONT> return apply(kurtosisImpl);<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> <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> * Returns the maximum of the available values<a name="line.246"></a>
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250 <FONT color="green">247</FONT> * @return The max or Double.NaN if no values have been added.<a name="line.247"></a>
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251 <FONT color="green">248</FONT> */<a name="line.248"></a>
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252 <FONT color="green">249</FONT> public double getMax() {<a name="line.249"></a>
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253 <FONT color="green">250</FONT> return apply(maxImpl);<a name="line.250"></a>
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254 <FONT color="green">251</FONT> }<a name="line.251"></a>
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255 <FONT color="green">252</FONT> <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> * Returns the minimum of the available values<a name="line.254"></a>
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258 <FONT color="green">255</FONT> * @return The min or Double.NaN if no values have been added.<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> public double getMin() {<a name="line.257"></a>
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261 <FONT color="green">258</FONT> return apply(minImpl);<a name="line.258"></a>
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262 <FONT color="green">259</FONT> }<a name="line.259"></a>
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263 <FONT color="green">260</FONT> <a name="line.260"></a>
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264 <FONT color="green">261</FONT> /**<a name="line.261"></a>
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265 <FONT color="green">262</FONT> * Returns the number of available values<a name="line.262"></a>
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266 <FONT color="green">263</FONT> * @return The number of available values<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> public long getN() {<a name="line.265"></a>
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269 <FONT color="green">266</FONT> return eDA.getNumElements();<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> * Returns the sum of the values that have been added to Univariate.<a name="line.270"></a>
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274 <FONT color="green">271</FONT> * @return The sum or Double.NaN if no values have been added<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> public double getSum() {<a name="line.273"></a>
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277 <FONT color="green">274</FONT> return apply(sumImpl);<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> * Returns the sum of the squares of the available values.<a name="line.278"></a>
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282 <FONT color="green">279</FONT> * @return The sum of the squares or Double.NaN if no<a name="line.279"></a>
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283 <FONT color="green">280</FONT> * values have been added.<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> public double getSumsq() {<a name="line.282"></a>
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286 <FONT color="green">283</FONT> return apply(sumsqImpl);<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> <a name="line.285"></a>
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289 <FONT color="green">286</FONT> /**<a name="line.286"></a>
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290 <FONT color="green">287</FONT> * Resets all statistics and storage<a name="line.287"></a>
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291 <FONT color="green">288</FONT> */<a name="line.288"></a>
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292 <FONT color="green">289</FONT> public void clear() {<a name="line.289"></a>
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293 <FONT color="green">290</FONT> eDA.clear();<a name="line.290"></a>
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294 <FONT color="green">291</FONT> }<a name="line.291"></a>
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|
295 <FONT color="green">292</FONT> <a name="line.292"></a>
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296 <FONT color="green">293</FONT> <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> * Returns the maximum number of values that can be stored in the<a name="line.295"></a>
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299 <FONT color="green">296</FONT> * dataset, or INFINITE_WINDOW (-1) if there is no limit.<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 The current window size or -1 if its Infinite.<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> public int getWindowSize() {<a name="line.300"></a>
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|
304 <FONT color="green">301</FONT> return windowSize;<a name="line.301"></a>
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305 <FONT color="green">302</FONT> }<a name="line.302"></a>
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306 <FONT color="green">303</FONT> <a name="line.303"></a>
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307 <FONT color="green">304</FONT> /**<a name="line.304"></a>
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308 <FONT color="green">305</FONT> * WindowSize controls the number of values which contribute<a name="line.305"></a>
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309 <FONT color="green">306</FONT> * to the reported statistics. For example, if<a name="line.306"></a>
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310 <FONT color="green">307</FONT> * windowSize is set to 3 and the values {1,2,3,4,5}<a name="line.307"></a>
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311 <FONT color="green">308</FONT> * have been added <strong> in that order</strong><a name="line.308"></a>
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|
312 <FONT color="green">309</FONT> * then the <i>available values</i> are {3,4,5} and all<a name="line.309"></a>
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313 <FONT color="green">310</FONT> * reported statistics will be based on these values<a name="line.310"></a>
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|
314 <FONT color="green">311</FONT> * @param windowSize sets the size of the window.<a name="line.311"></a>
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315 <FONT color="green">312</FONT> */<a name="line.312"></a>
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316 <FONT color="green">313</FONT> public void setWindowSize(int windowSize) {<a name="line.313"></a>
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|
317 <FONT color="green">314</FONT> if (windowSize < 1) {<a name="line.314"></a>
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|
318 <FONT color="green">315</FONT> if (windowSize != INFINITE_WINDOW) {<a name="line.315"></a>
|
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|
319 <FONT color="green">316</FONT> throw MathRuntimeException.createIllegalArgumentException(<a name="line.316"></a>
|
|
|
320 <FONT color="green">317</FONT> "window size must be positive ({0})", windowSize);<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> }<a name="line.319"></a>
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|
323 <FONT color="green">320</FONT> <a name="line.320"></a>
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|
324 <FONT color="green">321</FONT> this.windowSize = windowSize;<a name="line.321"></a>
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|
325 <FONT color="green">322</FONT> <a name="line.322"></a>
|
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|
326 <FONT color="green">323</FONT> // We need to check to see if we need to discard elements<a name="line.323"></a>
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|
327 <FONT color="green">324</FONT> // from the front of the array. If the windowSize is less than<a name="line.324"></a>
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|
328 <FONT color="green">325</FONT> // the current number of elements.<a name="line.325"></a>
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|
329 <FONT color="green">326</FONT> if (windowSize != INFINITE_WINDOW && windowSize < eDA.getNumElements()) {<a name="line.326"></a>
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|
330 <FONT color="green">327</FONT> eDA.discardFrontElements(eDA.getNumElements() - windowSize);<a name="line.327"></a>
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331 <FONT color="green">328</FONT> }<a name="line.328"></a>
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332 <FONT color="green">329</FONT> }<a name="line.329"></a>
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|
333 <FONT color="green">330</FONT> <a name="line.330"></a>
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334 <FONT color="green">331</FONT> /**<a name="line.331"></a>
|
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335 <FONT color="green">332</FONT> * Returns the current set of values in an array of double primitives.<a name="line.332"></a>
|
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|
336 <FONT color="green">333</FONT> * The order of addition is preserved. The returned array is a fresh<a name="line.333"></a>
|
|
|
337 <FONT color="green">334</FONT> * copy of the underlying data -- i.e., it is not a reference to the<a name="line.334"></a>
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338 <FONT color="green">335</FONT> * stored data.<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> * @return returns the current set of numbers in the order in which they<a name="line.337"></a>
|
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|
341 <FONT color="green">338</FONT> * were added to this set<a name="line.338"></a>
|
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|
342 <FONT color="green">339</FONT> */<a name="line.339"></a>
|
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|
343 <FONT color="green">340</FONT> public double[] getValues() {<a name="line.340"></a>
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|
|
344 <FONT color="green">341</FONT> return eDA.getElements();<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> <a name="line.343"></a>
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|
347 <FONT color="green">344</FONT> /**<a name="line.344"></a>
|
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|
348 <FONT color="green">345</FONT> * Returns the current set of values in an array of double primitives,<a name="line.345"></a>
|
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|
349 <FONT color="green">346</FONT> * sorted in ascending order. The returned array is a fresh<a name="line.346"></a>
|
|
|
350 <FONT color="green">347</FONT> * copy of the underlying data -- i.e., it is not a reference to the<a name="line.347"></a>
|
|
|
351 <FONT color="green">348</FONT> * stored data.<a name="line.348"></a>
|
|
|
352 <FONT color="green">349</FONT> * @return returns the current set of<a name="line.349"></a>
|
|
|
353 <FONT color="green">350</FONT> * numbers sorted in ascending order<a name="line.350"></a>
|
|
|
354 <FONT color="green">351</FONT> */<a name="line.351"></a>
|
|
|
355 <FONT color="green">352</FONT> public double[] getSortedValues() {<a name="line.352"></a>
|
|
|
356 <FONT color="green">353</FONT> double[] sort = getValues();<a name="line.353"></a>
|
|
|
357 <FONT color="green">354</FONT> Arrays.sort(sort);<a name="line.354"></a>
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|
|
358 <FONT color="green">355</FONT> return sort;<a name="line.355"></a>
|
|
|
359 <FONT color="green">356</FONT> }<a name="line.356"></a>
|
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|
360 <FONT color="green">357</FONT> <a name="line.357"></a>
|
|
|
361 <FONT color="green">358</FONT> /**<a name="line.358"></a>
|
|
|
362 <FONT color="green">359</FONT> * Returns the element at the specified index<a name="line.359"></a>
|
|
|
363 <FONT color="green">360</FONT> * @param index The Index of the element<a name="line.360"></a>
|
|
|
364 <FONT color="green">361</FONT> * @return return the element at the specified index<a name="line.361"></a>
|
|
|
365 <FONT color="green">362</FONT> */<a name="line.362"></a>
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|
|
366 <FONT color="green">363</FONT> public double getElement(int index) {<a name="line.363"></a>
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|
|
367 <FONT color="green">364</FONT> return eDA.getElement(index);<a name="line.364"></a>
|
|
|
368 <FONT color="green">365</FONT> }<a name="line.365"></a>
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|
369 <FONT color="green">366</FONT> <a name="line.366"></a>
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|
370 <FONT color="green">367</FONT> /**<a name="line.367"></a>
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|
371 <FONT color="green">368</FONT> * Returns an estimate for the pth percentile of the stored values.<a name="line.368"></a>
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|
|
372 <FONT color="green">369</FONT> * <p><a name="line.369"></a>
|
|
|
373 <FONT color="green">370</FONT> * The implementation provided here follows the first estimation procedure presented<a name="line.370"></a>
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|
|
374 <FONT color="green">371</FONT> * <a href="http://www.itl.nist.gov/div898/handbook/prc/section2/prc252.htm">here.</a><a name="line.371"></a>
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|
|
375 <FONT color="green">372</FONT> * </p><p><a name="line.372"></a>
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|
376 <FONT color="green">373</FONT> * <strong>Preconditions</strong>:<ul><a name="line.373"></a>
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|
|
377 <FONT color="green">374</FONT> * <li><code>0 &lt; p &le; 100</code> (otherwise an<a name="line.374"></a>
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|
|
378 <FONT color="green">375</FONT> * <code>IllegalArgumentException</code> is thrown)</li><a name="line.375"></a>
|
|
|
379 <FONT color="green">376</FONT> * <li>at least one value must be stored (returns <code>Double.NaN<a name="line.376"></a>
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|
|
380 <FONT color="green">377</FONT> * </code> otherwise)</li><a name="line.377"></a>
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|
|
381 <FONT color="green">378</FONT> * </ul></p><a name="line.378"></a>
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|
|
382 <FONT color="green">379</FONT> *<a name="line.379"></a>
|
|
|
383 <FONT color="green">380</FONT> * @param p the requested percentile (scaled from 0 - 100)<a name="line.380"></a>
|
|
|
384 <FONT color="green">381</FONT> * @return An estimate for the pth percentile of the stored data<a name="line.381"></a>
|
|
|
385 <FONT color="green">382</FONT> * @throws IllegalStateException if percentile implementation has been<a name="line.382"></a>
|
|
|
386 <FONT color="green">383</FONT> * overridden and the supplied implementation does not support setQuantile<a name="line.383"></a>
|
|
|
387 <FONT color="green">384</FONT> * values<a name="line.384"></a>
|
|
|
388 <FONT color="green">385</FONT> */<a name="line.385"></a>
|
|
|
389 <FONT color="green">386</FONT> public double getPercentile(double p) {<a name="line.386"></a>
|
|
|
390 <FONT color="green">387</FONT> if (percentileImpl instanceof Percentile) {<a name="line.387"></a>
|
|
|
391 <FONT color="green">388</FONT> ((Percentile) percentileImpl).setQuantile(p);<a name="line.388"></a>
|
|
|
392 <FONT color="green">389</FONT> } else {<a name="line.389"></a>
|
|
|
393 <FONT color="green">390</FONT> try {<a name="line.390"></a>
|
|
|
394 <FONT color="green">391</FONT> percentileImpl.getClass().getMethod(SET_QUANTILE_METHOD_NAME,<a name="line.391"></a>
|
|
|
395 <FONT color="green">392</FONT> new Class[] {Double.TYPE}).invoke(percentileImpl,<a name="line.392"></a>
|
|
|
396 <FONT color="green">393</FONT> new Object[] {Double.valueOf(p)});<a name="line.393"></a>
|
|
|
397 <FONT color="green">394</FONT> } catch (NoSuchMethodException e1) { // Setter guard should prevent<a name="line.394"></a>
|
|
|
398 <FONT color="green">395</FONT> throw MathRuntimeException.createIllegalArgumentException(<a name="line.395"></a>
|
|
|
399 <FONT color="green">396</FONT> UNSUPPORTED_METHOD_MESSAGE,<a name="line.396"></a>
|
|
|
400 <FONT color="green">397</FONT> percentileImpl.getClass().getName(), SET_QUANTILE_METHOD_NAME);<a name="line.397"></a>
|
|
|
401 <FONT color="green">398</FONT> } catch (IllegalAccessException e2) {<a name="line.398"></a>
|
|
|
402 <FONT color="green">399</FONT> throw MathRuntimeException.createIllegalArgumentException(<a name="line.399"></a>
|
|
|
403 <FONT color="green">400</FONT> ILLEGAL_ACCESS_MESSAGE,<a name="line.400"></a>
|
|
|
404 <FONT color="green">401</FONT> SET_QUANTILE_METHOD_NAME, percentileImpl.getClass().getName());<a name="line.401"></a>
|
|
|
405 <FONT color="green">402</FONT> } catch (InvocationTargetException e3) {<a name="line.402"></a>
|
|
|
406 <FONT color="green">403</FONT> throw MathRuntimeException.createIllegalArgumentException(e3.getCause());<a name="line.403"></a>
|
|
|
407 <FONT color="green">404</FONT> }<a name="line.404"></a>
|
|
|
408 <FONT color="green">405</FONT> }<a name="line.405"></a>
|
|
|
409 <FONT color="green">406</FONT> return apply(percentileImpl);<a name="line.406"></a>
|
|
|
410 <FONT color="green">407</FONT> }<a name="line.407"></a>
|
|
|
411 <FONT color="green">408</FONT> <a name="line.408"></a>
|
|
|
412 <FONT color="green">409</FONT> /**<a name="line.409"></a>
|
|
|
413 <FONT color="green">410</FONT> * Generates a text report displaying univariate statistics from values<a name="line.410"></a>
|
|
|
414 <FONT color="green">411</FONT> * that have been added. Each statistic is displayed on a separate<a name="line.411"></a>
|
|
|
415 <FONT color="green">412</FONT> * line.<a name="line.412"></a>
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416 <FONT color="green">413</FONT> *<a name="line.413"></a>
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417 <FONT color="green">414</FONT> * @return String with line feeds displaying statistics<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> @Override<a name="line.416"></a>
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420 <FONT color="green">417</FONT> public String toString() {<a name="line.417"></a>
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421 <FONT color="green">418</FONT> StringBuffer outBuffer = new StringBuffer();<a name="line.418"></a>
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422 <FONT color="green">419</FONT> String endl = "\n";<a name="line.419"></a>
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423 <FONT color="green">420</FONT> outBuffer.append("DescriptiveStatistics:").append(endl);<a name="line.420"></a>
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424 <FONT color="green">421</FONT> outBuffer.append("n: ").append(getN()).append(endl);<a name="line.421"></a>
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425 <FONT color="green">422</FONT> outBuffer.append("min: ").append(getMin()).append(endl);<a name="line.422"></a>
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426 <FONT color="green">423</FONT> outBuffer.append("max: ").append(getMax()).append(endl);<a name="line.423"></a>
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427 <FONT color="green">424</FONT> outBuffer.append("mean: ").append(getMean()).append(endl);<a name="line.424"></a>
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428 <FONT color="green">425</FONT> outBuffer.append("std dev: ").append(getStandardDeviation())<a name="line.425"></a>
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429 <FONT color="green">426</FONT> .append(endl);<a name="line.426"></a>
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430 <FONT color="green">427</FONT> outBuffer.append("median: ").append(getPercentile(50)).append(endl);<a name="line.427"></a>
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431 <FONT color="green">428</FONT> outBuffer.append("skewness: ").append(getSkewness()).append(endl);<a name="line.428"></a>
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432 <FONT color="green">429</FONT> outBuffer.append("kurtosis: ").append(getKurtosis()).append(endl);<a name="line.429"></a>
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433 <FONT color="green">430</FONT> return outBuffer.toString();<a name="line.430"></a>
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|
434 <FONT color="green">431</FONT> }<a name="line.431"></a>
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|
435 <FONT color="green">432</FONT> <a name="line.432"></a>
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|
436 <FONT color="green">433</FONT> /**<a name="line.433"></a>
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437 <FONT color="green">434</FONT> * Apply the given statistic to the data associated with this set of statistics.<a name="line.434"></a>
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438 <FONT color="green">435</FONT> * @param stat the statistic to apply<a name="line.435"></a>
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439 <FONT color="green">436</FONT> * @return the computed value of the statistic.<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> public double apply(UnivariateStatistic stat) {<a name="line.438"></a>
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442 <FONT color="green">439</FONT> return stat.evaluate(eDA.getInternalValues(), eDA.start(), eDA.getNumElements());<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> <a name="line.441"></a>
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445 <FONT color="green">442</FONT> // Implementation getters and setter<a name="line.442"></a>
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|
446 <FONT color="green">443</FONT> <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> * Returns the currently configured mean implementation.<a name="line.445"></a>
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|
449 <FONT color="green">446</FONT> *<a name="line.446"></a>
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450 <FONT color="green">447</FONT> * @return the UnivariateStatistic implementing the mean<a name="line.447"></a>
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451 <FONT color="green">448</FONT> * @since 1.2<a name="line.448"></a>
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452 <FONT color="green">449</FONT> */<a name="line.449"></a>
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453 <FONT color="green">450</FONT> public synchronized UnivariateStatistic getMeanImpl() {<a name="line.450"></a>
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|
454 <FONT color="green">451</FONT> return meanImpl;<a name="line.451"></a>
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|
455 <FONT color="green">452</FONT> }<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> * <p>Sets the implementation for the mean.</p><a name="line.455"></a>
|
|
|
459 <FONT color="green">456</FONT> *<a name="line.456"></a>
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|
460 <FONT color="green">457</FONT> * @param meanImpl the UnivariateStatistic instance to use<a name="line.457"></a>
|
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|
461 <FONT color="green">458</FONT> * for computing the mean<a name="line.458"></a>
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|
462 <FONT color="green">459</FONT> * @since 1.2<a name="line.459"></a>
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|
463 <FONT color="green">460</FONT> */<a name="line.460"></a>
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|
464 <FONT color="green">461</FONT> public synchronized void setMeanImpl(UnivariateStatistic meanImpl) {<a name="line.461"></a>
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|
|
465 <FONT color="green">462</FONT> this.meanImpl = meanImpl;<a name="line.462"></a>
|
|
|
466 <FONT color="green">463</FONT> }<a name="line.463"></a>
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|
|
467 <FONT color="green">464</FONT> <a name="line.464"></a>
|
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|
468 <FONT color="green">465</FONT> /**<a name="line.465"></a>
|
|
|
469 <FONT color="green">466</FONT> * Returns the currently configured geometric mean implementation.<a name="line.466"></a>
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|
470 <FONT color="green">467</FONT> *<a name="line.467"></a>
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|
|
471 <FONT color="green">468</FONT> * @return the UnivariateStatistic implementing the geometric mean<a name="line.468"></a>
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|
|
472 <FONT color="green">469</FONT> * @since 1.2<a name="line.469"></a>
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|
473 <FONT color="green">470</FONT> */<a name="line.470"></a>
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|
|
474 <FONT color="green">471</FONT> public synchronized UnivariateStatistic getGeometricMeanImpl() {<a name="line.471"></a>
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|
|
475 <FONT color="green">472</FONT> return geometricMeanImpl;<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> * <p>Sets the implementation for the gemoetric mean.</p><a name="line.476"></a>
|
|
|
480 <FONT color="green">477</FONT> *<a name="line.477"></a>
|
|
|
481 <FONT color="green">478</FONT> * @param geometricMeanImpl the UnivariateStatistic instance to use<a name="line.478"></a>
|
|
|
482 <FONT color="green">479</FONT> * for computing the geometric mean<a name="line.479"></a>
|
|
|
483 <FONT color="green">480</FONT> * @since 1.2<a name="line.480"></a>
|
|
|
484 <FONT color="green">481</FONT> */<a name="line.481"></a>
|
|
|
485 <FONT color="green">482</FONT> public synchronized void setGeometricMeanImpl(<a name="line.482"></a>
|
|
|
486 <FONT color="green">483</FONT> UnivariateStatistic geometricMeanImpl) {<a name="line.483"></a>
|
|
|
487 <FONT color="green">484</FONT> this.geometricMeanImpl = geometricMeanImpl;<a name="line.484"></a>
|
|
|
488 <FONT color="green">485</FONT> }<a name="line.485"></a>
|
|
|
489 <FONT color="green">486</FONT> <a name="line.486"></a>
|
|
|
490 <FONT color="green">487</FONT> /**<a name="line.487"></a>
|
|
|
491 <FONT color="green">488</FONT> * Returns the currently configured kurtosis implementation.<a name="line.488"></a>
|
|
|
492 <FONT color="green">489</FONT> *<a name="line.489"></a>
|
|
|
493 <FONT color="green">490</FONT> * @return the UnivariateStatistic implementing the kurtosis<a name="line.490"></a>
|
|
|
494 <FONT color="green">491</FONT> * @since 1.2<a name="line.491"></a>
|
|
|
495 <FONT color="green">492</FONT> */<a name="line.492"></a>
|
|
|
496 <FONT color="green">493</FONT> public synchronized UnivariateStatistic getKurtosisImpl() {<a name="line.493"></a>
|
|
|
497 <FONT color="green">494</FONT> return kurtosisImpl;<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> /**<a name="line.497"></a>
|
|
|
501 <FONT color="green">498</FONT> * <p>Sets the implementation for the kurtosis.</p><a name="line.498"></a>
|
|
|
502 <FONT color="green">499</FONT> *<a name="line.499"></a>
|
|
|
503 <FONT color="green">500</FONT> * @param kurtosisImpl the UnivariateStatistic instance to use<a name="line.500"></a>
|
|
|
504 <FONT color="green">501</FONT> * for computing the kurtosis<a name="line.501"></a>
|
|
|
505 <FONT color="green">502</FONT> * @since 1.2<a name="line.502"></a>
|
|
|
506 <FONT color="green">503</FONT> */<a name="line.503"></a>
|
|
|
507 <FONT color="green">504</FONT> public synchronized void setKurtosisImpl(UnivariateStatistic kurtosisImpl) {<a name="line.504"></a>
|
|
|
508 <FONT color="green">505</FONT> this.kurtosisImpl = kurtosisImpl;<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> /**<a name="line.508"></a>
|
|
|
512 <FONT color="green">509</FONT> * Returns the currently configured maximum implementation.<a name="line.509"></a>
|
|
|
513 <FONT color="green">510</FONT> *<a name="line.510"></a>
|
|
|
514 <FONT color="green">511</FONT> * @return the UnivariateStatistic implementing the maximum<a name="line.511"></a>
|
|
|
515 <FONT color="green">512</FONT> * @since 1.2<a name="line.512"></a>
|
|
|
516 <FONT color="green">513</FONT> */<a name="line.513"></a>
|
|
|
517 <FONT color="green">514</FONT> public synchronized UnivariateStatistic getMaxImpl() {<a name="line.514"></a>
|
|
|
518 <FONT color="green">515</FONT> return maxImpl;<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> * <p>Sets the implementation for the maximum.</p><a name="line.519"></a>
|
|
|
523 <FONT color="green">520</FONT> *<a name="line.520"></a>
|
|
|
524 <FONT color="green">521</FONT> * @param maxImpl the UnivariateStatistic instance to use<a name="line.521"></a>
|
|
|
525 <FONT color="green">522</FONT> * for computing the maximum<a name="line.522"></a>
|
|
|
526 <FONT color="green">523</FONT> * @since 1.2<a name="line.523"></a>
|
|
|
527 <FONT color="green">524</FONT> */<a name="line.524"></a>
|
|
|
528 <FONT color="green">525</FONT> public synchronized void setMaxImpl(UnivariateStatistic maxImpl) {<a name="line.525"></a>
|
|
|
529 <FONT color="green">526</FONT> this.maxImpl = maxImpl;<a name="line.526"></a>
|
|
|
530 <FONT color="green">527</FONT> }<a name="line.527"></a>
|
|
|
531 <FONT color="green">528</FONT> <a name="line.528"></a>
|
|
|
532 <FONT color="green">529</FONT> /**<a name="line.529"></a>
|
|
|
533 <FONT color="green">530</FONT> * Returns the currently configured minimum implementation.<a name="line.530"></a>
|
|
|
534 <FONT color="green">531</FONT> *<a name="line.531"></a>
|
|
|
535 <FONT color="green">532</FONT> * @return the UnivariateStatistic implementing the minimum<a name="line.532"></a>
|
|
|
536 <FONT color="green">533</FONT> * @since 1.2<a name="line.533"></a>
|
|
|
537 <FONT color="green">534</FONT> */<a name="line.534"></a>
|
|
|
538 <FONT color="green">535</FONT> public synchronized UnivariateStatistic getMinImpl() {<a name="line.535"></a>
|
|
|
539 <FONT color="green">536</FONT> return minImpl;<a name="line.536"></a>
|
|
|
540 <FONT color="green">537</FONT> }<a name="line.537"></a>
|
|
|
541 <FONT color="green">538</FONT> <a name="line.538"></a>
|
|
|
542 <FONT color="green">539</FONT> /**<a name="line.539"></a>
|
|
|
543 <FONT color="green">540</FONT> * <p>Sets the implementation for the minimum.</p><a name="line.540"></a>
|
|
|
544 <FONT color="green">541</FONT> *<a name="line.541"></a>
|
|
|
545 <FONT color="green">542</FONT> * @param minImpl the UnivariateStatistic instance to use<a name="line.542"></a>
|
|
|
546 <FONT color="green">543</FONT> * for computing the minimum<a name="line.543"></a>
|
|
|
547 <FONT color="green">544</FONT> * @since 1.2<a name="line.544"></a>
|
|
|
548 <FONT color="green">545</FONT> */<a name="line.545"></a>
|
|
|
549 <FONT color="green">546</FONT> public synchronized void setMinImpl(UnivariateStatistic minImpl) {<a name="line.546"></a>
|
|
|
550 <FONT color="green">547</FONT> this.minImpl = minImpl;<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> * Returns the currently configured percentile implementation.<a name="line.551"></a>
|
|
|
555 <FONT color="green">552</FONT> *<a name="line.552"></a>
|
|
|
556 <FONT color="green">553</FONT> * @return the UnivariateStatistic implementing the percentile<a name="line.553"></a>
|
|
|
557 <FONT color="green">554</FONT> * @since 1.2<a name="line.554"></a>
|
|
|
558 <FONT color="green">555</FONT> */<a name="line.555"></a>
|
|
|
559 <FONT color="green">556</FONT> public synchronized UnivariateStatistic getPercentileImpl() {<a name="line.556"></a>
|
|
|
560 <FONT color="green">557</FONT> return percentileImpl;<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> /**<a name="line.560"></a>
|
|
|
564 <FONT color="green">561</FONT> * Sets the implementation to be used by {@link #getPercentile(double)}.<a name="line.561"></a>
|
|
|
565 <FONT color="green">562</FONT> * The supplied <code>UnivariateStatistic</code> must provide a<a name="line.562"></a>
|
|
|
566 <FONT color="green">563</FONT> * <code>setQuantile(double)</code> method; otherwise<a name="line.563"></a>
|
|
|
567 <FONT color="green">564</FONT> * <code>IllegalArgumentException</code> is thrown.<a name="line.564"></a>
|
|
|
568 <FONT color="green">565</FONT> *<a name="line.565"></a>
|
|
|
569 <FONT color="green">566</FONT> * @param percentileImpl the percentileImpl to set<a name="line.566"></a>
|
|
|
570 <FONT color="green">567</FONT> * @throws IllegalArgumentException if the supplied implementation does not<a name="line.567"></a>
|
|
|
571 <FONT color="green">568</FONT> * provide a <code>setQuantile</code> method<a name="line.568"></a>
|
|
|
572 <FONT color="green">569</FONT> * @since 1.2<a name="line.569"></a>
|
|
|
573 <FONT color="green">570</FONT> */<a name="line.570"></a>
|
|
|
574 <FONT color="green">571</FONT> public synchronized void setPercentileImpl(<a name="line.571"></a>
|
|
|
575 <FONT color="green">572</FONT> UnivariateStatistic percentileImpl) {<a name="line.572"></a>
|
|
|
576 <FONT color="green">573</FONT> try {<a name="line.573"></a>
|
|
|
577 <FONT color="green">574</FONT> percentileImpl.getClass().getMethod(SET_QUANTILE_METHOD_NAME,<a name="line.574"></a>
|
|
|
578 <FONT color="green">575</FONT> new Class[] {Double.TYPE}).invoke(percentileImpl,<a name="line.575"></a>
|
|
|
579 <FONT color="green">576</FONT> new Object[] {Double.valueOf(50.0d)});<a name="line.576"></a>
|
|
|
580 <FONT color="green">577</FONT> } catch (NoSuchMethodException e1) {<a name="line.577"></a>
|
|
|
581 <FONT color="green">578</FONT> throw MathRuntimeException.createIllegalArgumentException(<a name="line.578"></a>
|
|
|
582 <FONT color="green">579</FONT> "percentile implementation {0} does not support setQuantile",<a name="line.579"></a>
|
|
|
583 <FONT color="green">580</FONT> percentileImpl.getClass().getName());<a name="line.580"></a>
|
|
|
584 <FONT color="green">581</FONT> } catch (IllegalAccessException e2) {<a name="line.581"></a>
|
|
|
585 <FONT color="green">582</FONT> throw MathRuntimeException.createIllegalArgumentException(<a name="line.582"></a>
|
|
|
586 <FONT color="green">583</FONT> ILLEGAL_ACCESS_MESSAGE,<a name="line.583"></a>
|
|
|
587 <FONT color="green">584</FONT> SET_QUANTILE_METHOD_NAME, percentileImpl.getClass().getName());<a name="line.584"></a>
|
|
|
588 <FONT color="green">585</FONT> } catch (InvocationTargetException e3) {<a name="line.585"></a>
|
|
|
589 <FONT color="green">586</FONT> throw MathRuntimeException.createIllegalArgumentException(e3.getCause());<a name="line.586"></a>
|
|
|
590 <FONT color="green">587</FONT> }<a name="line.587"></a>
|
|
|
591 <FONT color="green">588</FONT> this.percentileImpl = percentileImpl;<a name="line.588"></a>
|
|
|
592 <FONT color="green">589</FONT> }<a name="line.589"></a>
|
|
|
593 <FONT color="green">590</FONT> <a name="line.590"></a>
|
|
|
594 <FONT color="green">591</FONT> /**<a name="line.591"></a>
|
|
|
595 <FONT color="green">592</FONT> * Returns the currently configured skewness implementation.<a name="line.592"></a>
|
|
|
596 <FONT color="green">593</FONT> *<a name="line.593"></a>
|
|
|
597 <FONT color="green">594</FONT> * @return the UnivariateStatistic implementing the skewness<a name="line.594"></a>
|
|
|
598 <FONT color="green">595</FONT> * @since 1.2<a name="line.595"></a>
|
|
|
599 <FONT color="green">596</FONT> */<a name="line.596"></a>
|
|
|
600 <FONT color="green">597</FONT> public synchronized UnivariateStatistic getSkewnessImpl() {<a name="line.597"></a>
|
|
|
601 <FONT color="green">598</FONT> return skewnessImpl;<a name="line.598"></a>
|
|
|
602 <FONT color="green">599</FONT> }<a name="line.599"></a>
|
|
|
603 <FONT color="green">600</FONT> <a name="line.600"></a>
|
|
|
604 <FONT color="green">601</FONT> /**<a name="line.601"></a>
|
|
|
605 <FONT color="green">602</FONT> * <p>Sets the implementation for the skewness.</p><a name="line.602"></a>
|
|
|
606 <FONT color="green">603</FONT> *<a name="line.603"></a>
|
|
|
607 <FONT color="green">604</FONT> * @param skewnessImpl the UnivariateStatistic instance to use<a name="line.604"></a>
|
|
|
608 <FONT color="green">605</FONT> * for computing the skewness<a name="line.605"></a>
|
|
|
609 <FONT color="green">606</FONT> * @since 1.2<a name="line.606"></a>
|
|
|
610 <FONT color="green">607</FONT> */<a name="line.607"></a>
|
|
|
611 <FONT color="green">608</FONT> public synchronized void setSkewnessImpl(<a name="line.608"></a>
|
|
|
612 <FONT color="green">609</FONT> UnivariateStatistic skewnessImpl) {<a name="line.609"></a>
|
|
|
613 <FONT color="green">610</FONT> this.skewnessImpl = skewnessImpl;<a name="line.610"></a>
|
|
|
614 <FONT color="green">611</FONT> }<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> * Returns the currently configured variance implementation.<a name="line.614"></a>
|
|
|
618 <FONT color="green">615</FONT> *<a name="line.615"></a>
|
|
|
619 <FONT color="green">616</FONT> * @return the UnivariateStatistic implementing the variance<a name="line.616"></a>
|
|
|
620 <FONT color="green">617</FONT> * @since 1.2<a name="line.617"></a>
|
|
|
621 <FONT color="green">618</FONT> */<a name="line.618"></a>
|
|
|
622 <FONT color="green">619</FONT> public synchronized UnivariateStatistic getVarianceImpl() {<a name="line.619"></a>
|
|
|
623 <FONT color="green">620</FONT> return varianceImpl;<a name="line.620"></a>
|
|
|
624 <FONT color="green">621</FONT> }<a name="line.621"></a>
|
|
|
625 <FONT color="green">622</FONT> <a name="line.622"></a>
|
|
|
626 <FONT color="green">623</FONT> /**<a name="line.623"></a>
|
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|
627 <FONT color="green">624</FONT> * <p>Sets the implementation for the variance.</p><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> * @param varianceImpl the UnivariateStatistic instance to use<a name="line.626"></a>
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630 <FONT color="green">627</FONT> * for computing the variance<a name="line.627"></a>
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631 <FONT color="green">628</FONT> * @since 1.2<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> public synchronized void setVarianceImpl(<a name="line.630"></a>
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634 <FONT color="green">631</FONT> UnivariateStatistic varianceImpl) {<a name="line.631"></a>
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635 <FONT color="green">632</FONT> this.varianceImpl = varianceImpl;<a name="line.632"></a>
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636 <FONT color="green">633</FONT> }<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> /**<a name="line.635"></a>
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639 <FONT color="green">636</FONT> * Returns the currently configured sum of squares implementation.<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> * @return the UnivariateStatistic implementing the sum of squares<a name="line.638"></a>
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642 <FONT color="green">639</FONT> * @since 1.2<a name="line.639"></a>
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643 <FONT color="green">640</FONT> */<a name="line.640"></a>
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644 <FONT color="green">641</FONT> public synchronized UnivariateStatistic getSumsqImpl() {<a name="line.641"></a>
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645 <FONT color="green">642</FONT> return sumsqImpl;<a name="line.642"></a>
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646 <FONT color="green">643</FONT> }<a name="line.643"></a>
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647 <FONT color="green">644</FONT> <a name="line.644"></a>
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648 <FONT color="green">645</FONT> /**<a name="line.645"></a>
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649 <FONT color="green">646</FONT> * <p>Sets the implementation for the sum of squares.</p><a name="line.646"></a>
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650 <FONT color="green">647</FONT> *<a name="line.647"></a>
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651 <FONT color="green">648</FONT> * @param sumsqImpl the UnivariateStatistic instance to use<a name="line.648"></a>
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652 <FONT color="green">649</FONT> * for computing the sum of squares<a name="line.649"></a>
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653 <FONT color="green">650</FONT> * @since 1.2<a name="line.650"></a>
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654 <FONT color="green">651</FONT> */<a name="line.651"></a>
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655 <FONT color="green">652</FONT> public synchronized void setSumsqImpl(UnivariateStatistic sumsqImpl) {<a name="line.652"></a>
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656 <FONT color="green">653</FONT> this.sumsqImpl = sumsqImpl;<a name="line.653"></a>
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657 <FONT color="green">654</FONT> }<a name="line.654"></a>
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658 <FONT color="green">655</FONT> <a name="line.655"></a>
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659 <FONT color="green">656</FONT> /**<a name="line.656"></a>
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660 <FONT color="green">657</FONT> * Returns the currently configured sum implementation.<a name="line.657"></a>
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661 <FONT color="green">658</FONT> *<a name="line.658"></a>
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662 <FONT color="green">659</FONT> * @return the UnivariateStatistic implementing the sum<a name="line.659"></a>
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663 <FONT color="green">660</FONT> * @since 1.2<a name="line.660"></a>
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664 <FONT color="green">661</FONT> */<a name="line.661"></a>
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665 <FONT color="green">662</FONT> public synchronized UnivariateStatistic getSumImpl() {<a name="line.662"></a>
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666 <FONT color="green">663</FONT> return sumImpl;<a name="line.663"></a>
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667 <FONT color="green">664</FONT> }<a name="line.664"></a>
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668 <FONT color="green">665</FONT> <a name="line.665"></a>
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669 <FONT color="green">666</FONT> /**<a name="line.666"></a>
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670 <FONT color="green">667</FONT> * <p>Sets the implementation for the sum.</p><a name="line.667"></a>
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671 <FONT color="green">668</FONT> *<a name="line.668"></a>
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672 <FONT color="green">669</FONT> * @param sumImpl the UnivariateStatistic instance to use<a name="line.669"></a>
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673 <FONT color="green">670</FONT> * for computing the sum<a name="line.670"></a>
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674 <FONT color="green">671</FONT> * @since 1.2<a name="line.671"></a>
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675 <FONT color="green">672</FONT> */<a name="line.672"></a>
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676 <FONT color="green">673</FONT> public synchronized void setSumImpl(UnivariateStatistic sumImpl) {<a name="line.673"></a>
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677 <FONT color="green">674</FONT> this.sumImpl = sumImpl;<a name="line.674"></a>
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678 <FONT color="green">675</FONT> }<a name="line.675"></a>
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679 <FONT color="green">676</FONT> <a name="line.676"></a>
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680 <FONT color="green">677</FONT> /**<a name="line.677"></a>
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681 <FONT color="green">678</FONT> * Returns a copy of this DescriptiveStatistics instance with the same internal state.<a name="line.678"></a>
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682 <FONT color="green">679</FONT> *<a name="line.679"></a>
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683 <FONT color="green">680</FONT> * @return a copy of this<a name="line.680"></a>
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684 <FONT color="green">681</FONT> */<a name="line.681"></a>
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685 <FONT color="green">682</FONT> public DescriptiveStatistics copy() {<a name="line.682"></a>
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686 <FONT color="green">683</FONT> DescriptiveStatistics result = new DescriptiveStatistics();<a name="line.683"></a>
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687 <FONT color="green">684</FONT> copy(this, result);<a name="line.684"></a>
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688 <FONT color="green">685</FONT> return result;<a name="line.685"></a>
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689 <FONT color="green">686</FONT> }<a name="line.686"></a>
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690 <FONT color="green">687</FONT> <a name="line.687"></a>
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691 <FONT color="green">688</FONT> /**<a name="line.688"></a>
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692 <FONT color="green">689</FONT> * Copies source to dest.<a name="line.689"></a>
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693 <FONT color="green">690</FONT> * <p>Neither source nor dest can be null.</p><a name="line.690"></a>
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694 <FONT color="green">691</FONT> *<a name="line.691"></a>
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695 <FONT color="green">692</FONT> * @param source DescriptiveStatistics to copy<a name="line.692"></a>
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696 <FONT color="green">693</FONT> * @param dest DescriptiveStatistics to copy to<a name="line.693"></a>
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697 <FONT color="green">694</FONT> * @throws NullPointerException if either source or dest is null<a name="line.694"></a>
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698 <FONT color="green">695</FONT> */<a name="line.695"></a>
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699 <FONT color="green">696</FONT> public static void copy(DescriptiveStatistics source, DescriptiveStatistics dest) {<a name="line.696"></a>
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700 <FONT color="green">697</FONT> // Copy data and window size<a name="line.697"></a>
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701 <FONT color="green">698</FONT> dest.eDA = source.eDA.copy();<a name="line.698"></a>
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702 <FONT color="green">699</FONT> dest.windowSize = source.windowSize;<a name="line.699"></a>
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703 <FONT color="green">700</FONT> <a name="line.700"></a>
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704 <FONT color="green">701</FONT> // Copy implementations<a name="line.701"></a>
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705 <FONT color="green">702</FONT> dest.maxImpl = source.maxImpl.copy();<a name="line.702"></a>
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706 <FONT color="green">703</FONT> dest.meanImpl = source.meanImpl.copy();<a name="line.703"></a>
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707 <FONT color="green">704</FONT> dest.minImpl = source.minImpl.copy();<a name="line.704"></a>
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708 <FONT color="green">705</FONT> dest.sumImpl = source.sumImpl.copy();<a name="line.705"></a>
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709 <FONT color="green">706</FONT> dest.varianceImpl = source.varianceImpl.copy();<a name="line.706"></a>
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710 <FONT color="green">707</FONT> dest.sumsqImpl = source.sumsqImpl.copy();<a name="line.707"></a>
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711 <FONT color="green">708</FONT> dest.geometricMeanImpl = source.geometricMeanImpl.copy();<a name="line.708"></a>
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712 <FONT color="green">709</FONT> dest.kurtosisImpl = source.kurtosisImpl;<a name="line.709"></a>
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713 <FONT color="green">710</FONT> dest.skewnessImpl = source.skewnessImpl;<a name="line.710"></a>
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714 <FONT color="green">711</FONT> dest.percentileImpl = source.percentileImpl;<a name="line.711"></a>
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715 <FONT color="green">712</FONT> }<a name="line.712"></a>
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716 <FONT color="green">713</FONT> }<a name="line.713"></a>
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717
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718
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736
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741
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742
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746
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760
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761
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762
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763
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764
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765
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766
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767
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768
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769
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770
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771
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772
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773
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774
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775
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776
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777 </PRE>
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778 </BODY>
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779 </HTML>
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