Package org.apache.spark.mllib.stat.test

Interface TestResult<DF>

Type Parameters:
DF - Return type of degreesOfFreedom.
All Known Implementing Classes:
ChiSqTestResult, KolmogorovSmirnovTestResult
public interface TestResult<DF>
Trait for hypothesis test results.

  • Method Summary

    Modifier and Type
    Method
    Description
    DF
    degreesOfFreedom()
    Returns the degree(s) of freedom of the hypothesis test.
    String
    nullHypothesis()
    Null hypothesis of the test.
    double
    pValue()
    The probability of obtaining a test statistic result at least as extreme as the one that was actually observed, assuming that the null hypothesis is true.
    double
    statistic()
    Test statistic.
    String
    toString()
    String explaining the hypothesis test result.

  • Method Details

    • degreesOfFreedom

      DF degreesOfFreedom()
      Returns the degree(s) of freedom of the hypothesis test. Return type should be Number(e.g. Int, Double) or tuples of Numbers for toString compatibility.
      Returns:
      (undocumented)

    • nullHypothesis

      String nullHypothesis()
      Null hypothesis of the test.
      Returns:
      (undocumented)

    • pValue

      double pValue()
      The probability of obtaining a test statistic result at least as extreme as the one that was actually observed, assuming that the null hypothesis is true.
      Returns:
      (undocumented)

    • statistic

      double statistic()
      Test statistic.
      Returns:
      (undocumented)

    • toString

      String toString()
      String explaining the hypothesis test result. Specific classes implementing this trait should override this method to output test-specific information.
      Overrides:
      toString in class Object
      Returns:
      (undocumented)