Example usage for org.apache.commons.math3.stat.inference WilcoxonSignedRankTest WilcoxonSignedRankTest

Introduction

In this page you can find the example usage for org.apache.commons.math3.stat.inference WilcoxonSignedRankTest WilcoxonSignedRankTest.

Prototype

public WilcoxonSignedRankTest() 

Source Link

Document

Create a test instance where NaN's are left in place and ties get the average of applicable ranks.

Usage

From source file:Logica.TestWilcoxon.java

@Override
public double teste(double p_value, Amostra analise_amostras) {
    WilcoxonSignedRankTest wilcoxon = new WilcoxonSignedRankTest();
    double resultado = wilcoxon.wilcoxonSignedRankTest(analise_amostras.getAmostras_caso(),
            analise_amostras.getAmostras_controle(), false);
    return resultado;
}

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From source file:net.recommenders.rival.evaluation.statistics.StatisticalSignificance.java

/**
 * Gets the p-value according to the requested method.
 *
 * @param method one of "t", "pairedT", "wilcoxon"
 * @return the p-value according to the requested method
 *//*from  w ww  .j  ava2 s .com*/
public double getPValue(final String method) {
    double p = Double.NaN;

    double[] baselineValues = new double[baselineMetricPerDimension.values().size()];
    int i = 0;
    for (Double d : baselineMetricPerDimension.values()) {
        baselineValues[i] = d;
        i++;
    }

    double[] testValues = new double[testMetricPerDimension.values().size()];
    i = 0;
    for (Double d : testMetricPerDimension.values()) {
        testValues[i] = d;
        i++;
    }

    if ("t".equals(method)) {
        p = TestUtils.tTest(baselineValues, testValues);
    } else if ("pairedT".equals(method)) {
        p = TestUtils.pairedTTest(baselineValues, testValues);
    } else if ("wilcoxon".equals(method)) {
        p = new WilcoxonSignedRankTest().wilcoxonSignedRankTest(baselineValues, testValues, false);
    }

    return p;
}

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From source file:org.mines.processing.utils.ResultsTable.java

private boolean signifTest(double[] s1, double[] s2) {
    if (significanceTest == SigTest.TTEST) {
        TTest ttest = new TTest();
        return ttest.tTest(s1, s2, pValue);

    }/*from  w w  w  . ja va 2  s. c o  m*/
    if (significanceTest == SigTest.PAIRED_TTEST) {
        TTest ttest = new TTest();
        return ttest.pairedTTest(s1, s2, pValue);

    }
    if (significanceTest == SigTest.MANN_WHITNEY_U) {
        MannWhitneyUTest mwuTest = new MannWhitneyUTest();
        return mwuTest.mannWhitneyUTest(s1, s2) < pValue;
    }
    if (significanceTest == SigTest.WILCOXON_SIGNED_RANK) {
        WilcoxonSignedRankTest wsrTest = new WilcoxonSignedRankTest();
        return wsrTest.wilcoxonSignedRankTest(s1, s2, true) < pValue;
    }
    return false;
}

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