Implicit Null happens when a variable in a dataset has unequal number of categories in different years due to one or several of the categories have zero case.
All variables except AAR and GEO must have equal number of
categories. The data that is handled by this package is an aggregated
rawdata. The categories for each variables might be different in different
year. This does not elucidate non-existence of the category but rather a
zero number belonging to that category. This function will standardize the
categories across all year.
Usage
do_implicit_null(dt = NULL, level = getOption("orgdata.geo.levels"))See also
Other implicit-null functions:
find_implicit_col(),
find_implicit_null(),
get_implicit_col(),
get_implicit_per_year(),
get_implicit_ref()