org.moeaframework.util.statistics
Class IntervalRatioStatisticalTest

java.lang.Object
  org.moeaframework.util.statistics.IntervalRatioStatisticalTest

All Implemented Interfaces:

StatisticalTest

Direct Known Subclasses:

OneWayANOVA, SingleSampleTTest, TwoSampleTTest

public abstract class IntervalRatioStatisticalTest
extends Object
implements StatisticalTest

Abstract class for interval ratio statistical tests.

Field Summary

protected List<Observation>	data Collection of all observations added to this test.
protected int	numberOfGroups The number of groups being tested.

Constructor Summary

IntervalRatioStatisticalTest(int numberOfGroups)
Constructs an interval ratio statistical test with the specified number of groups.

Method Summary

protected void	add(double value, int group) Adds a new observation with the specified value and group.
protected void	addAll(double[] values, int group) Adds several new observations to the specified group.
protected List<double[]>	categorize() Organizes the observations by their group.
int	getNumberOfGroups() Returns the number of groups being tested.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.moeaframework.util.statistics.StatisticalTest

test

Field Detail

numberOfGroups

protected final int numberOfGroups

The number of groups being tested.

data

protected final List<Observation> data

Collection of all observations added to this test.

Constructor Detail

IntervalRatioStatisticalTest

public IntervalRatioStatisticalTest(int numberOfGroups)

Constructs an interval ratio statistical test with the specified number of groups.

Parameters:

numberOfGroups - the number of groups being tested

Method Detail

add

protected void add(double value,
                   int group)

Adds a new observation with the specified value and group.

Parameters:

value - the value of the new observation

group - the group to which the new observation belongs

addAll

protected void addAll(double[] values,
                      int group)

Adds several new observations to the specified group.

Parameters:

values - the values of the new observations

group - the group to which the new observations belong

categorize

protected List<double[]> categorize()

Organizes the observations by their group.

Returns:

a list containing the vectorized values observed for each group

getNumberOfGroups

public int getNumberOfGroups()

Returns the number of groups being tested.

Returns:

the number of groups being tested