Find Matching (or Non-Matching) Elements

%nin% is a binary operator, which returns a logical vector indicating if there is a match or not for its left operand. A true vector element indicates no match in left operand, false indicates a match.

x %nin% table

Arguments

x

a vector (numeric, character, factor)

table

a vector (numeric, character, factor), matching the mode of x

Value

vector of logical values with length equal to length of x.

Author

Frank E Harrell Jr <f.harrell@vanderbilt.edu>

See also

match, %in%

Examples

c('a','b','c') %nin% c('a','b')
#> [1] FALSE FALSE  TRUE