cards (version 0.3.0)

.unique_and_sorted: ARD-flavor of unique()

Description

Essentially a wrapper for unique(x) |> sort() with NA levels removed. For factors, all levels are returned even if they are unobserved. Similarly, logical vectors always return c(TRUE, FALSE), even if both levels are not observed.

Usage

.unique_and_sorted(x, useNA = c("no", "always"))

Value

a vector

Arguments

x

(any)
a vector

Examples

cards:::.unique_and_sorted(factor(letters[c(5, 5:1)], levels = letters))

cards:::.unique_and_sorted(c(FALSE, TRUE, TRUE, FALSE))

cards:::.unique_and_sorted(c(5, 5:1))