Documentation error for count

[gevro]

Hi, There is an error in this documentation: https://dplyr.tidyverse.org/reference/count.html

It says it 'count the unique values'. But that isn't true. It is just counting the number of rows. n_distinct counts unique values.

[DavisVaughan]

I think "count the unique values of one or more variables" is exactly what it does. If you say count(df, x) and x is made of c("a", "b", "a") then you get a count of 2 for a and 1 for b

[gevro]

Thanks. In that case, how is it different from n_distinct() ?

[DavisVaughan]

n_distinct() can be used inside a mutate() or summarise() and be generated alongside other columns. count() is a top level verb that always produces a single kind of output - the group variables followed by an n column

[gevro]

Thanks for explaining!