make_split_funThis function is intended for use as a pre-processing component in make_split_fun, and should not be called
directly by end users.
drop_facet_levels(df, spl, ...)(data.frame)
the incoming data corresponding with the parent facet.
(VarLevelSplit)
the split.
additional parameters passed internally.
make_split_fun()
Other make_custom_split:
add_combo_facet(),
make_split_fun(),
make_split_result(),
trim_levels_in_facets()