Class ANOVA

java.lang.Object

org.episteme.core.mathematics.statistics.anova.ANOVA

public class ANOVA
extends Object

Analysis of Variance (ANOVA) - Tests for significant differences between group means.

One-way ANOVA: tests if means of 3+ groups are equal. F-statistic = (between-group variance) / (within-group variance)

Since:

1.0

Author:

Silvere Martin-Michiellot, Gemini AI (Google DeepMind)

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ANOVA.ANOVAResult	Result of ANOVA test.

Constructor Summary

Constructors

Constructor	Description
ANOVA()

Method Summary

Modifier and Type	Method	Description
static ANOVA.ANOVAResult	oneWay(List<List<Real>> groups)	One-way ANOVA.
static ANOVA.ANOVAResult[]	twoWay(Real[][][] data)	Two-way ANOVA (simplified - balanced design).

Methods inherited from class Object

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

Constructor Details

ANOVA

public ANOVA()

Method Details

oneWay

public static ANOVA.ANOVAResult oneWay(List<List<Real>> groups)

One-way ANOVA.

Parameters:

groups - list of groups, each group is list of observations

Returns:

ANOVA result with F-statistic and components

twoWay

public static ANOVA.ANOVAResult[] twoWay(Real[][][] data)

Two-way ANOVA (simplified - balanced design).

Tests effects of two factors and their interaction.

Parameters:

data - [factor1_levels][factor2_levels][replicates]

Returns:

array of results: [factor1, factor2, interaction]