WilcoxonTest
javanpst.tests.oneSample.wilcoxonTest

Class WilcoxonTest



  • public class WilcoxonTestextends StatisticalTest
    The Wilcoxon Signed-Ranks test This test is proposed for use with paired-sample data in making inferences concerning the value of the median of the population of differences. Zero differences are shared between both samples. If there is a odd number of them, one is discarded. Ties are handled by the midrank method. An exact p-value (for p-values equal or lower than 0.2, and sample size equal or lower than 50) is provided. An asymptotic approximation to the normal distribution is also provided. Furthermore, this version of the test also provides two confidence intervals (at 0.90 and 0.95 levels) for the location of the median of the differences, through the use of Walsh averages.
    • Constructor Detail

      • WilcoxonTest

        public WilcoxonTest()
        Default builder
      • WilcoxonTest

        public WilcoxonTest(DataTable newData)
        Builder. Load data to test.
        Parameters:
        newData - data to test.
    • Method Detail

      • setData

        public void setData(DataTable newData)
        Load data to test.
        Parameters:
        newData - data to test.
      • getRPlus

        public double getRPlus()
        Get R+ statistic of the first sample
        Returns:
        R+ statistic
      • getRMinus

        public double getRMinus()
        Get R- statistic of the second sample
        Returns:
        R- statistic
      • getExactLeftPValue

        public double getExactLeftPValue()
        Get left tail exact p-value
        Returns:
        left tail p-value computed
      • getExactRightPValue

        public double getExactRightPValue()
        Get right tail exact p-value
        Returns:
        right tail p-value computed
      • getExactDoublePValue

        public double getExactDoublePValue()
        Get double tail exact p-value
        Returns:
        double tail p-value computed
      • getLeftPValue

        public double getLeftPValue()
        Get left tail p-value
        Returns:
        left tail p-value computed
      • getRightPValue

        public double getRightPValue()
        Get right tail p-value
        Returns:
        right tail p-value computed
      • getDoublePValue

        public double getDoublePValue()
        Get double tail p-value
        Returns:
        double tail p-value computed

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