%nin%

Convenience 'not-in' operator

x %nin% y

Arguments

x

vector of items

y

vector of all values

Value

logical vector of items in x not in y

Details

Complement of the built-in operator %in%. Returns the elements of x that are not in y.

Author

Kieran Healy

Examples

fruit <- c("apples", "oranges", "banana")
"apples" %nin% fruit
#> [1] FALSE
"pears" %nin% fruit
#> [1] TRUE