Check if a vector has duplicates

This function returns a logical value indicating whether the input vector contains duplicated elements.

Usage

has_duplicates(x)

Arguments

x

A vector.

Value

A logical value indicating whether the input vector contains duplicated elements.

Examples

if(interactive()){
has_duplicates(c(1, 2, 3))  # returns FALSE
has_duplicates(c(1, 2, 2))  # returns TRUE
}