n {tidytable} | R Documentation |
Number of observations in each group
Description
Helper function that can be used to find counts by group.
Can be used inside summarize()
, mutate()
, & filter()
Usage
n()
Examples
df <- data.table(
x = 1:3,
y = 4:6,
z = c("a","a","b")
)
df %>%
summarize(count = n(), .by = z)
[Package tidytable version 0.11.1 Index]