apply_levels: Converts the column factor levels in 'df' to those in...

Description Usage Arguments Value

View source: R/prepare_helpers.R


Each column in the result is a factor with the values of df and the levels of df_reference. This means that if there are levels in df_to_change that are not in df_reference, NAs will be introduced. The main use of this function is in classifier problems, where the training and the test set need to have equal factors. To work, all names(df_reference) need to be


apply_levels(df, df_reference)



The df that is to be releveled


A reference df, which column levels will be applied to df if that column is a factor


A data.frame where all factor's levels where changed. Through applying new levels, NAs could have been introduced

crtests documentation built on May 29, 2017, 11:52 a.m.