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 and 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 Detail

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)