%nin% is the complement to %in%. It looks which values
in x do not match (hence, are not in)
values in y.
x %nin% y
| x | Vector with values to be matched. |
|---|---|
| y | Vector with values to be matched against. |
A logical vector, indicating if a match was not located for each element
of x, thus the values are TRUE or FALSE and
never NA.
See 'Details' in match.
c("a", "B", "c") %in% letters#> [1] TRUE FALSE TRUEc("a", "B", "c") %nin% letters#> [1] FALSE TRUE FALSEc(1, 2, 3, 4) %in% c(3, 4, 5, 6)#> [1] FALSE FALSE TRUE TRUEc(1, 2, 3, 4) %nin% c(3, 4, 5, 6)#> [1] TRUE TRUE FALSE FALSE