| Classes in this File | Line Coverage | Branch Coverage | Complexity | |||||||
| TestUtils |
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| 1.0;1 |
| 1 | /* |
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| 2 | * Copyright 2005 The Apache Software Foundation. |
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| 3 | * |
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| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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| 5 | * you may not use this file except in compliance with the License. |
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| 6 | * You may obtain a copy of the License at |
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| 7 | * |
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| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 9 | * |
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| 10 | * Unless required by applicable law or agreed to in writing, software |
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| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 13 | * See the License for the specific language governing permissions and |
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| 14 | * limitations under the License. |
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| 15 | */ |
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| 16 | package org.apache.commons.math.stat.inference; |
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| 17 | ||
| 18 | import org.apache.commons.math.MathException; |
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| 19 | import org.apache.commons.math.stat.descriptive.StatisticalSummary; |
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| 20 | ||
| 21 | /** |
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| 22 | * A collection of static methods to create inference test instances or to |
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| 23 | * perform inference tests. |
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| 24 | * |
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| 25 | * @since 1.1 |
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| 26 | * @version $Revision$ $Date: 2005-07-04 16:30:05 -0700 (Mon, 04 Jul 2005) $ |
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| 27 | */ |
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| 28 | public class TestUtils { |
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| 29 | /** |
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| 30 | * Prevent instantiation. |
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| 31 | */ |
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| 32 | protected TestUtils() { |
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| 33 | 0 | super(); |
| 34 | 0 | } |
| 35 | ||
| 36 | /** Singleton TTest instance initialized using configured factory */ |
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| 37 | 6 | private static TTest tTest = TestFactory.newInstance().createTTest(); |
| 38 | ||
| 39 | /** Singleton ChiSquareTest instance initialized using configured factory */ |
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| 40 | 6 | private static ChiSquareTest chiSquareTest = |
| 41 | TestFactory.newInstance().createChiSquareTest(); |
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| 42 | ||
| 43 | /** |
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| 44 | * Return a (singleton) TTest instance. Does not create a new instance. |
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| 45 | * |
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| 46 | * @return a TTest instance |
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| 47 | */ |
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| 48 | public static TTest getTTest() { |
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| 49 | 12 | return tTest; |
| 50 | } |
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| 51 | ||
| 52 | /** |
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| 53 | * Return a (singleton) ChiSquareTest instance. Does not create a new instance. |
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| 54 | * |
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| 55 | * @return a ChiSquareTest instance |
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| 56 | */ |
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| 57 | public static ChiSquareTest getChiSquareTest() { |
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| 58 | 8 | return chiSquareTest; |
| 59 | } |
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| 60 | ||
| 61 | /** |
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| 62 | * @see org.apache.commons.math.stat.inference.TTest#homoscedasticT(double[], double[]) |
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| 63 | */ |
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| 64 | public static double homoscedasticT(double[] sample1, double[] sample2) |
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| 65 | throws IllegalArgumentException { |
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| 66 | 2 | return tTest.homoscedasticT(sample1, sample2); |
| 67 | } |
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| 68 | ||
| 69 | /** |
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| 70 | * @see org.apache.commons.math.stat.inference.TTest#homoscedasticT(org.apache.commons.math.stat.descriptive.StatisticalSummary, org.apache.commons.math.stat.descriptive.StatisticalSummary) |
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| 71 | */ |
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| 72 | public static double homoscedasticT(StatisticalSummary sampleStats1, |
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| 73 | StatisticalSummary sampleStats2) |
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| 74 | throws IllegalArgumentException { |
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| 75 | 0 | return tTest.homoscedasticT(sampleStats1, sampleStats2); |
| 76 | } |
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| 77 | ||
| 78 | /** |
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| 79 | * @see org.apache.commons.math.stat.inference.TTest#homoscedasticTTest(double[], double[], double) |
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| 80 | */ |
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| 81 | public static boolean homoscedasticTTest(double[] sample1, double[] sample2, |
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| 82 | double alpha) |
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| 83 | throws IllegalArgumentException, MathException { |
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| 84 | 4 | return tTest. homoscedasticTTest(sample1, sample2, alpha); |
| 85 | } |
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| 86 | ||
| 87 | /** |
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| 88 | * @see org.apache.commons.math.stat.inference.TTest#homoscedasticTTest(double[], double[]) |
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| 89 | */ |
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| 90 | public static double homoscedasticTTest(double[] sample1, double[] sample2) |
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| 91 | throws IllegalArgumentException, MathException { |
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| 92 | 0 | return tTest.homoscedasticTTest(sample1, sample2); |
| 93 | } |
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| 94 | ||
| 95 | /** |
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| 96 | * @see org.apache.commons.math.stat.inference.TTest#homoscedasticTTest(org.apache.commons.math.stat.descriptive.StatisticalSummary, org.apache.commons.math.stat.descriptive.StatisticalSummary) |
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| 97 | */ |
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| 98 | public static double homoscedasticTTest(StatisticalSummary sampleStats1, |
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| 99 | StatisticalSummary sampleStats2) |
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| 100 | throws IllegalArgumentException, MathException { |
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| 101 | 2 | return tTest.homoscedasticTTest(sampleStats1, sampleStats2); |
| 102 | } |
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| 103 | ||
| 104 | /** |
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| 105 | * @see org.apache.commons.math.stat.inference.TTest#pairedT(double[], double[]) |
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| 106 | */ |
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| 107 | public static double pairedT(double[] sample1, double[] sample2) |
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| 108 | throws IllegalArgumentException, MathException { |
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| 109 | 2 | return tTest.pairedT(sample1, sample2); |
| 110 | } |
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| 111 | ||
| 112 | /** |
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| 113 | * @see org.apache.commons.math.stat.inference.TTest#pairedTTest(double[], double[], double) |
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| 114 | */ |
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| 115 | public static boolean pairedTTest(double[] sample1, double[] sample2, |
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| 116 | double alpha) |
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| 117 | throws IllegalArgumentException, MathException { |
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| 118 | 4 | return tTest.pairedTTest(sample1, sample2, alpha); |
| 119 | } |
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| 120 | ||
| 121 | /** |
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| 122 | * @see org.apache.commons.math.stat.inference.TTest#pairedTTest(double[], double[]) |
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| 123 | */ |
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| 124 | public static double pairedTTest(double[] sample1, double[] sample2) |
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| 125 | throws IllegalArgumentException, MathException { |
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| 126 | 4 | return tTest.pairedTTest(sample1, sample2); |
| 127 | } |
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| 128 | ||
| 129 | /** |
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| 130 | * @see org.apache.commons.math.stat.inference.TTest#t(double, double[]) |
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| 131 | */ |
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| 132 | public static double t(double mu, double[] observed) |
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| 133 | throws IllegalArgumentException { |
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| 134 | 10 | return tTest.t(mu, observed); |
| 135 | } |
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| 136 | ||
| 137 | /** |
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| 138 | * @see org.apache.commons.math.stat.inference.TTest#t(double, org.apache.commons.math.stat.descriptive.StatisticalSummary) |
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| 139 | */ |
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| 140 | public static double t(double mu, StatisticalSummary sampleStats) |
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| 141 | throws IllegalArgumentException { |
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| 142 | 10 | return tTest.t(mu, sampleStats); |
| 143 | } |
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| 144 | ||
| 145 | /** |
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| 146 | * @see org.apache.commons.math.stat.inference.TTest#t(double[], double[]) |
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| 147 | */ |
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| 148 | public static double t(double[] sample1, double[] sample2) |
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| 149 | throws IllegalArgumentException { |
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| 150 | 6 | return tTest.t(sample1, sample2); |
| 151 | } |
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| 152 | ||
| 153 | /** |
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| 154 | * @see org.apache.commons.math.stat.inference.TTest#t(org.apache.commons.math.stat.descriptive.StatisticalSummary, org.apache.commons.math.stat.descriptive.StatisticalSummary) |
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| 155 | */ |
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| 156 | public static double t(StatisticalSummary sampleStats1, |
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| 157 | StatisticalSummary sampleStats2) |
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| 158 | throws IllegalArgumentException { |
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| 159 | 4 | return tTest.t(sampleStats1, sampleStats2); |
| 160 | } |
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| 161 | ||
| 162 | /** |
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| 163 | * @see org.apache.commons.math.stat.inference.TTest#tTest(double, double[], double) |
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| 164 | */ |
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| 165 | public static boolean tTest(double mu, double[] sample, double alpha) |
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| 166 | throws IllegalArgumentException, MathException { |
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| 167 | 6 | return tTest.tTest(mu, sample, alpha); |
| 168 | } |
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| 169 | ||
| 170 | /** |
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| 171 | * @see org.apache.commons.math.stat.inference.TTest#tTest(double, double[]) |
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| 172 | */ |
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| 173 | public static double tTest(double mu, double[] sample) |
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| 174 | throws IllegalArgumentException, MathException { |
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| 175 | 6 | return tTest.tTest(mu, sample); |
| 176 | } |
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| 177 | ||
| 178 | /** |
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| 179 | * @see org.apache.commons.math.stat.inference.TTest#tTest(double, org.apache.commons.math.stat.descriptive.StatisticalSummary, double) |
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| 180 | */ |
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| 181 | public static boolean tTest(double mu, StatisticalSummary sampleStats, |
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| 182 | double alpha) |
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| 183 | throws IllegalArgumentException, MathException { |
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| 184 | 6 | return tTest. tTest(mu, sampleStats, alpha); |
| 185 | } |
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| 186 | ||
| 187 | /** |
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| 188 | * @see org.apache.commons.math.stat.inference.TTest#tTest(double, org.apache.commons.math.stat.descriptive.StatisticalSummary) |
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| 189 | */ |
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| 190 | public static double tTest(double mu, StatisticalSummary sampleStats) |
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| 191 | throws IllegalArgumentException, MathException { |
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| 192 | 6 | return tTest.tTest(mu, sampleStats); |
| 193 | } |
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| 194 | ||
| 195 | /** |
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| 196 | * @see org.apache.commons.math.stat.inference.TTest#tTest(double[], double[], double) |
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| 197 | */ |
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| 198 | public static boolean tTest(double[] sample1, double[] sample2, double alpha) |
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| 199 | throws IllegalArgumentException, MathException { |
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| 200 | 8 | return tTest.tTest(sample1, sample2, alpha); |
| 201 | } |
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| 202 | ||
| 203 | /** |
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| 204 | * @see org.apache.commons.math.stat.inference.TTest#tTest(double[], double[]) |
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| 205 | */ |
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| 206 | public static double tTest(double[] sample1, double[] sample2) |
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| 207 | throws IllegalArgumentException, MathException { |
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| 208 | 6 | return tTest.tTest(sample1, sample2); |
| 209 | } |
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| 210 | ||
| 211 | /** |
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| 212 | * @see org.apache.commons.math.stat.inference.TTest#tTest(org.apache.commons.math.stat.descriptive.StatisticalSummary, org.apache.commons.math.stat.descriptive.StatisticalSummary, double) |
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| 213 | */ |
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| 214 | public static boolean tTest(StatisticalSummary sampleStats1, |
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| 215 | StatisticalSummary sampleStats2, double alpha) |
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| 216 | throws IllegalArgumentException, MathException { |
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| 217 | 8 | return tTest. tTest(sampleStats1, sampleStats2, alpha); |
| 218 | } |
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| 219 | ||
| 220 | /** |
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| 221 | * @see org.apache.commons.math.stat.inference.TTest#tTest(org.apache.commons.math.stat.descriptive.StatisticalSummary, org.apache.commons.math.stat.descriptive.StatisticalSummary) |
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| 222 | */ |
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| 223 | public static double tTest(StatisticalSummary sampleStats1, |
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| 224 | StatisticalSummary sampleStats2) |
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| 225 | throws IllegalArgumentException, MathException { |
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| 226 | 4 | return tTest.tTest(sampleStats1, sampleStats2); |
| 227 | } |
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| 228 | ||
| 229 | /** |
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| 230 | * @see org.apache.commons.math.stat.inference.ChiSquareTest#chiSquare(double[], long[]) |
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| 231 | */ |
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| 232 | public static double chiSquare(double[] expected, long[] observed) |
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| 233 | throws IllegalArgumentException { |
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| 234 | 10 | return chiSquareTest.chiSquare(expected, observed); |
| 235 | } |
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| 236 | ||
| 237 | /** |
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| 238 | * @see org.apache.commons.math.stat.inference.ChiSquareTest#chiSquare(long[][]) |
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| 239 | */ |
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| 240 | public static double chiSquare(long[][] counts) |
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| 241 | throws IllegalArgumentException { |
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| 242 | 14 | return chiSquareTest.chiSquare(counts); |
| 243 | } |
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| 244 | ||
| 245 | /** |
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| 246 | * @see org.apache.commons.math.stat.inference.ChiSquareTest#chiSquareTest(double[], long[], double) |
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| 247 | */ |
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| 248 | public static boolean chiSquareTest(double[] expected, long[] observed, |
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| 249 | double alpha) |
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| 250 | throws IllegalArgumentException, MathException { |
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| 251 | 10 | return chiSquareTest.chiSquareTest(expected, observed, alpha); |
| 252 | } |
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| 253 | ||
| 254 | /** |
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| 255 | * @see org.apache.commons.math.stat.inference.ChiSquareTest#chiSquareTest(double[], long[]) |
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| 256 | */ |
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| 257 | public static double chiSquareTest(double[] expected, long[] observed) |
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| 258 | throws IllegalArgumentException, MathException { |
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| 259 | 4 | return chiSquareTest.chiSquareTest(expected, observed); |
| 260 | } |
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| 261 | ||
| 262 | /** |
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| 263 | * @see org.apache.commons.math.stat.inference.ChiSquareTest#chiSquareTest(long[][], double) |
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| 264 | */ |
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| 265 | public static boolean chiSquareTest(long[][] counts, double alpha) |
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| 266 | throws IllegalArgumentException, MathException { |
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| 267 | 8 | return chiSquareTest. chiSquareTest(counts, alpha); |
| 268 | } |
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| 269 | ||
| 270 | /** |
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| 271 | * @see org.apache.commons.math.stat.inference.ChiSquareTest#chiSquareTest(long[][]) |
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| 272 | */ |
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| 273 | public static double chiSquareTest(long[][] counts) |
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| 274 | throws IllegalArgumentException, MathException { |
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| 275 | 6 | return chiSquareTest. chiSquareTest(counts); |
| 276 | } |
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| 277 | ||
| 278 | } |