[R] element of

Marc Schwartz mschwartz at medanalytics.com
Wed May 7 18:24:02 CEST 2003

>-----Original Message-----
>From: r-help-bounces at stat.math.ethz.ch 
>[mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of 
>alexander.schnee at tuebingen.mpg.de
>Sent: Wednesday, May 07, 2003 10:59 AM
>To: r-help at stat.math.ethz.ch
>Subject: [R] element of
>Dear all,
>is there any funktion in R which i can use to check if a 
>single value is element of a matrix or data.frame so that it 
>returns me logical values like TRUE/FALSE.
>Thanks in advance for your help!

See help("%in%") which will give you a TRUE/FALSE value.

You can also use which() to get the actual position of the element in
the data structure.  See help("which") for more information on that


Marc Schwartz

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