| %nin% {Hmisc} | R Documentation |
%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.
a %nin% b
a |
a vector (numeric, character, factor) |
b |
a vector (numeric, character, factor), matching the mode of a |
vector of logical values with length equal to length of a.
c('a','b','c') %nin% c('a','b')