Merge the Generated Levels of Moderators
Merge the levels of moderators generated by mod_levels() into a data frame.
merge_mod_levels(...)
...: The output from mod_levels(), or a list of levels generated by mod_levels_list().A wlevels-class object, which is a data frame of the combinations of levels, with additional attributes about the levels.
It merges the levels of moderators generated by mod_levels() into a data frame, with each row represents a combination of the levels. The output is to be used by cond_indirect_effects().
Users usually do not need to use this function because cond_indirect_effects() will merge the levels internally if necessary. This function is used when users need to customize the levels for each moderator and so cannot use mod_levels_list() or the default levels in cond_indirect_effects().
data(data_med_mod_ab) dat <- data_med_mod_ab # Form the levels from a list of lm() outputs lm_m <- lm(m ~ x*w1 + c1 + c2, dat) lm_y <- lm(y ~ m*w2 + x + w1 + c1 + c2, dat) lm_out <- lm2list(lm_m, lm_y) w1_levels <- mod_levels(lm_out, w = "w1") w1_levels w2_levels <- mod_levels(lm_out, w = "w2") w2_levels merge_mod_levels(w1_levels, w2_levels)
mod_levels() on generating the levels of a moderator.