n {plyranges} | R Documentation |
This function should only be used
within summarise()
, mutate()
and filter()
.
n()
n()
will only be evaluated inside a function call, where it
returns an integer.
ir <- as_iranges( data.frame(start = 1:10, width = 5, name = c(rep("a", 5), rep("b", 3), rep("c", 2)) ) ) by_names <- group_by(ir, name) summarise(by_names, n = n()) mutate(by_names, n = n()) filter(by_names, n() >= 3)