This is intended as the effect size version of an ANOVA. For effect_sd, the effect size is the standard deviation of some coefficients about their mean. For effect_rssm, it is the root sum of squared differences from the mean. For effect_rss, it is simply the square root of the sum of squared coefficients.
effect_sd(coef) effect_rssm(coef) effect_rss(coef)
The column numbers of the design matrix for the relevant coefficients.
An object defining how to calculate an effect size.
effect_rssm may be better suited to comparing effect sizes from designs with differing numbers of coefficients, such as differential exon usage.