org.apache.spark.mllib.stat.test
Interface TestResult<DF>

All Known Implementing Classes:

ChiSqTestResult

public interface TestResult<DF>

:: Experimental :: Trait for hypothesis test results.

Method Summary

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

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)

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)

statistic

double statistic()

Test statistic.

Returns:

(undocumented)

nullHypothesis

String nullHypothesis()

Null hypothesis of the test.

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)