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I tend to forget the syntax that works with stats::aggregate.
stats::aggregate
count_groups(x, ...)
A data.frame with the counts per groups.
data.frame
A data.frame.
Columns in x.
x
Other statistics: column_sums(), powers_of_ten, relative_difference(), round_half_away_from_zero(), sloboda(), weighted_variance()
column_sums()
powers_of_ten
relative_difference()
round_half_away_from_zero()
sloboda()
weighted_variance()
count_groups(mtcars, "am", "gear") RUnit::checkEquals(dplyr::count(mtcars, am, gear), count_groups(mtcars, "am", "gear"), checkNames = FALSE)
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