Check Unique

Checks whether all elements of an object are unique.

check_unique(x, x_name = substitute(x), error = TRUE)

Arguments

x

The object to check.

x_name

A string of the name of the object x.

error

A flag indicating whether to throw an informative error or immediately generate an informative message if the check fails.

Value

An invisible copy of x (if it doesn't throw an error).

See also

check_vector

Examples

check_unique(2, error = FALSE)
#> Warning: `check_unique()` was deprecated in checkr 0.5.1.
#> Please use `chk::chk_unique()` instead.
check_unique(c(2,2), error = FALSE)
#> Warning: `check_unique()` was deprecated in checkr 0.5.1.
#> Please use `chk::chk_unique()` instead.
#> Warning: c(2, 2) must be unique
check_unique(1:2, error = FALSE)
#> Warning: `check_unique()` was deprecated in checkr 0.5.1.
#> Please use `chk::chk_unique()` instead.
check_unique(character(0), error = FALSE)
#> Warning: `check_unique()` was deprecated in checkr 0.5.1.
#> Please use `chk::chk_unique()` instead.
check_unique(NULL, error = FALSE)
#> Warning: `check_unique()` was deprecated in checkr 0.5.1.
#> Please use `chk::chk_unique()` instead.
check_unique(list(), error = FALSE)
#> Warning: `check_unique()` was deprecated in checkr 0.5.1.
#> Please use `chk::chk_unique()` instead.