%notin% | R Documentation |
Negation of in
x %notin% y
x |
Values to be matched |
y |
Values to be matched against. |
If y
is NULL
, then x
is TRUE
for consistency with
%in%
. Note that the function uses fmatch
internally for
performance on large y
. Accordingly, y
will be modified by adding
a .match.hash
attribute and thus must not be used in packages where y
is a constant, or for things like names of data.table
.
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