Class WilcoxonSignedRankTest.Result

    • Method Detail

      • hasTiedValues

        public boolean hasTiedValues()
        Return true if the data had tied values (with equal ranks).

        Note: The exact computation cannot be used when there are tied values. The p-value uses the asymptotic approximation using a tie correction.

        Returns:
        true if there were tied values
      • hasZeroValues

        public boolean hasZeroValues()
        Return true if the data had zero values. This occurs when the differences between sample values matched the expected location shift: z = x - y == mu.

        Note: The exact computation cannot be used when there are zero values. The p-value uses the asymptotic approximation.

        Returns:
        true if there were zero values
      • getPValue

        public double getPValue()
        Description copied from interface: SignificanceResult
        Returns the test statistic p-value.

        The number returned is the smallest significance level at which one can reject the null hypothesis.

        Specified by:
        getPValue in interface SignificanceResult
        Returns:
        the p-value