[R] Function to check the presence of an Item in an array

[Dimitris Rizopoulos]

check ?"%in%", e.g.,

x <- c("foo", "bar", "bar2", "qux")
"foo" %in% x
"GUNDALA" %in% x


I hope it helps.

Best,
Dimitris

---
Dimitris Rizopoulos
Biostatistical Centre
School of Public Health
Catholic University of Leuven

Address: Kapucijnenvoer 35, Leuven, Belgium
Tel: +32/(0)16/336899
Fax: +32/(0)16/337015
Web: http://med.kuleuven.be/biostat/
      http://perswww.kuleuven.be/dimitris_rizopoulos/


Quoting Gundala Viswanath <gundalav at gmail.com>:

> Hi all,
>
> Is there a way to do it?
> For example:
>
>> x
> "foo" "bar" "bar2" "qux"
>
> is there a function to return TRUE/FALSE
> given a test variable
>
>> func("foo")
> TRUE
>
>> func("GUNDALA")
> FALSE
>
> Is there such "func" in R?
>
> - Gundala Viswanath
> Jakarta - Indonesia
>
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>
>



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