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