.warn_differing_levels: Warn on differing factor levels between labeled and unlabeled data
Description
Warn on differing factor levels between labeled and unlabeled data
Usage
.warn_differing_levels(data_l, data_u, factor_vars)
Value
Invisibly returns NULL. Messages are printed for each
variable whose levels differ.
Arguments
- data_l
labeled data.frame
- data_u
unlabeled data.frame
- factor_vars
character vector of factor column names