extract_varcomp() that caused some variance components to be dropped if the variables involved in the random effects formula involved special characters such as ., (, ), or ^.weights = varIdent(form = ~ 1 | Stratum).g_mlm() function to allow use of separate models for the numerator and denominator of the effect size.g_mlm() so that the returnModel argument is no longer necessary.na.action of na.exclude().modelStruct$corStruct).Fisher_info() with models that have more than two levels.summary.g_mlm(). summary() method only works for a g_mlm() object when setting returnModel = TRUE, which is the default.g_mlm().