Check if all the elements in a vector are unique — all_unique • dendextend

Checks if all the elements in a vector are unique

all_unique(x, ...)

Source

https://www.mail-archive.com/r-help@r-project.org/msg77592.html OLD (no longer working): https://r.789695.n4.nabble.com/Is-there-a-function-to-test-if-all-the-elements-in-a-vector-are-unique-td931833.html

Arguments

x: a vector
...: ignored.

Value

logical (are all the elements in the vector unique)

See also

Examples


all_unique(c(1:5, 1, 1))
#> [1] FALSE
all_unique(c(1, 1, 2))
#> [1] FALSE
all_unique(c(1, 1, 2, 3, 3, 3, 3))
#> [1] FALSE
all_unique(c(1, 3, 2))
#> [1] TRUE
all_unique(c(1:10))
#> [1] TRUE