gg_epsilon: The Greenhouse & Geisser sphericity correction factor

View source: R/anova.R

gg_epsilonR Documentation

The Greenhouse & Geisser sphericity correction factor

Description

Calculates the Greenhouse & Geisser epsilon-hat factor for correction of sphericity. This appeared in Geisser, S., & Greenhouse, S. W. (1958), and Greenhouse & Geisser (1959).

Usage

gg_epsilon(Sigma)

Arguments

Sigma

A sample covariance matrix.

Value

The epsilon-hat sphericity correction factor.


mark-andrews/isdsr-pkg documentation built on Sept. 13, 2022, 11:47 p.m.