powerAOVI

Estimates the statistical power of an analysis of variance Model I (fixed effects) after it has been performed.It requires the input of the observed F-statistic value, numerator degrees of freedom (k - 1), denominator degrees of freedom (N - k), method of noncentrality parameter estimate (1=unbiased; else=uniformly minimum variance unbiased), and the significance level.

It outputs the power of the performed ANOVA test Model I, and the graphic of the central and noncentral F-distributions of the ANOVA Model I.