Check Duplicates

Checks if an object contains duplicated elements.

Usage

assert_unique(x)

Arguments

x

An object to be checked.

Value

Throws an error, if any, and returns x invisibly otherwise.

See also

Other checking methods: assert_constant(), assert_dim(), assert_empty(), assert_infinite(), assert_length(), assert_lower(), assert_missing(), assert_names(), assert_numeric, assert_package(), assert_square(), assert_type()

Author

N. Frerebeau