n_grouplevels {insight} | R Documentation |
Returns the number of group levels of random effects from mixed models.
n_grouplevels(x, ...)
x |
A mixed model. |
... |
Additional arguments that can be passed to the function. Currently,
you can use |
The number of group levels in the model.
if (require("lme4")) { data(sleepstudy) set.seed(12345) sleepstudy$grp <- sample(1:5, size = 180, replace = TRUE) sleepstudy$subgrp <- NA for (i in 1:5) { filter_group <- sleepstudy$grp == i sleepstudy$subgrp[filter_group] <- sample(1:30, size = sum(filter_group), replace = TRUE) } model <- lmer( Reaction ~ Days + (1 | grp / subgrp) + (1 | Subject), data = sleepstudy ) n_grouplevels(model) }