mlr3misc (version 0.15.1)

distinct_values: Get Distinct Values

Description

Extracts the distinct values of an atomic vector, with the possibility to drop levels and remove missing values.

Usage

distinct_values(x, drop = TRUE, na_rm = TRUE)

Value

(atomic vector()) with distinct values in no particular order.

Arguments

x

(atomic vector()).

drop

:: logical(1)
If TRUE, only returns values which are present in x. If FALSE, returns all levels for factor() and ordered(), as well as TRUE and FALSE for logical()s.

na_rm

:: logical(1)
If TRUE, missing values are removed from the vector of distinct values.

Examples

# for factors:
x = factor(c(letters[1:2], NA), levels = letters[1:3])
distinct_values(x)
distinct_values(x, na_rm = FALSE)
distinct_values(x, drop = FALSE)
distinct_values(x, drop = FALSE, na_rm = FALSE)

# for logicals:
distinct_values(TRUE, drop = FALSE)

# for numerics:
distinct_values(sample(1:3, 10, replace = TRUE))