either a single number or a data.frame with columns named
Level and Population. Level must
exactly match the levels of vr. Population is the population for that
level of vr.
per
calculate rate per this many items in the population
drop_na
drop missing values (NA)?
max_levels
a categorical variable can have at most this many levels. Used to avoid printing huge tables.
See Also
Other tables:
tab(),
tab_cross(),
tab_subset_rate(),
total(),
total_rate()