This is documentation for Mathematica 8, which was
based on an earlier version of the Wolfram Language.
 ANOVA PACKAGE SYMBOL

# ANOVA

 ANOVA[data] performs a one-way analysis of variance. performs an analysis of variance for model as a function of the categorical variables vars.
• The data can have the form , where the number of coordinates is equal to the number of variables in the list vars.
• For data of the form , a one-way analysis of variance can be obtained without explicitly specifying the model and variable.
• The model argument can be a list containing main effects and interactions. Main effects are elements of vars, and interactions are products of main effects.
• A full factorial model including all interactions between variables can be specified as {x, y, ..., All}.
• The following options can be given:
 CellMeans True whether cell means should be included in the output WorkingPrecision MachinePrecision the precision used in internal computations PostTests {} significance tests to perform SignificanceLevel 0.05 significance level for performed tests
A one-way analysis of variance:
A two-way analysis of variance:
Needs["ANOVA`"]
A one-way analysis of variance:
 Out[2]=

Needs["ANOVA`"]
A two-way analysis of variance:
 Out[2]=
 Options   (4)
Omit cell means from output:
Computation at precision 20:
Analysis of variance with Bonferroni test:
Bonferroni test at significance level .01: