com.rapidminer.tools.math
Class AnovaCalculator

java.lang.Object
  com.rapidminer.tools.math.AnovaCalculator

public class AnovaCalculator
extends java.lang.Object

Determines if the null hypothesis (all actual mean values are the same) holds for the given values. This class uses an ANalysis Of VAriances approach to determine probability that the null hypothesis is wrong.

Author:

Ingo Mierswa

Nested Class Summary

static class

AnovaCalculator.AnovaSignificanceTestResult

Constructor Summary

AnovaCalculator()

Method Summary

void	addGroup(double numberOfValues, double mean, double variance)
void	addGroup(TestGroup group)
void	clearGroups()
SignificanceTestResult	performSignificanceTest()
void	setAlpha(double alpha)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AnovaCalculator

public AnovaCalculator()

Method Detail

setAlpha

public void setAlpha(double alpha)

addGroup

public void addGroup(TestGroup group)

addGroup

public void addGroup(double numberOfValues,
                     double mean,
                     double variance)

clearGroups

public void clearGroups()

performSignificanceTest

public SignificanceTestResult performSignificanceTest()
                                               throws SignificanceCalculationException

Throws:

SignificanceCalculationException