Counts by group — count_by • ecmeta.nsclc

Count the number of unique values of one ore more variables by groups.

count_by(data, vars, by, max_n = Inf)

Arguments

data	A dataset returned by `ecdata::pin_nsclc()` and preprocessed using `preprocess()`.
vars	A character vector indicating the variables to count unique values for.
by	Columns to group by.
max_n	The maximum number of values in a group in the returned data.