R - Value contained in set

Question

This is likely a repeat question but I did some searching and maybe couldn't find the right keywords to search by...

Is there a function which tests if a variable value is contained in a particular set of values?

For example, assume I had this magically function 'contains', I would like it to have the following property:

contains(value = 5, set = c(2:6)) would return TRUE, where

contains(value = 5, set = c(2,3,4,6,7)) would return FALSE.

Obviously, I could create this function, but I'm hoping a package or option exists.

Have you looked at `%in%` ? – jdharrison Jul 25 '14 at 21:23 — jdharrison, Jul 25 '14 at 21:23
Apparently not, thanks :) – jameselmore Jul 25 '14 at 21:24 — jameselmore, Jul 25 '14 at 21:24

score 6 · Answer 1 · answered Jul 25 '14 at 21:29

6

There are several very simple ways to do this. The %in%-Operator is propably the most intuitive.

> 5 %in% 2:6
[1] TRUE

See ?matchfor some more information.

answered Jul 25 '14 at 21:29

ChrKoenig

1 Answers1