d.contr.eta2: Compute contrast d from (partial) eta-squared

In mcfanda/cpower: Power analysis for contrasts

Description

Compute contrast d from (partial) eta-squared

Usage

d.contr.eta2(cont, eta2, scale = "g")

Arguments

cont	vector of contrast weights.
eta2	eta-squared coefficient for given contrast.
scale	method to scale d.

Value

eta-squared. @details The parameter scale controls the method used to scale the effect size d.

1. scale="g" assumes scaling by dividing 2*d by the sum of absolute coefficients

2. scale="q" assumes scaling by dividing d by the square-root of the sum of squares of the coefficients

3. numeric any constant that multiplies the unscaled d to obtain the scaled d

Author(s)

Marcello Gallucci, [e-mail]

mcfanda/cpower documentation built on May 28, 2019, 1 p.m.