[R] test if text is part of vector

[Johannes Radinger]

Hi,

thank you very much... %in% is the operator I was looking for.

cheers,
johannes

-------- Original-Nachricht --------
> Datum: Fri, 20 Jan 2012 13:01:54 +0100
> Von: Rainer M Krug <r.m.krug at gmail.com>
> An: Johannes Radinger <JRadinger at gmx.at>
> CC: R-help at r-project.org
> Betreff: Re: [R] test if text is part of vector

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> On 20/01/12 12:50, Johannes Radinger wrote:
> > Hello,
> > 
> > this is a very simple question: How can I find out if a word is
> > part of a list of words
> > 
> > like: a <- "word1" b <- "word4"
> > 
> > vector <- c("word1","word2","word3")
> > 
> > I tried it with match(a,vector) but this gives the position of the
> > word.
> > 
> > I am not sure if and how that can be done with a logical operator
> > like if: IF text is part of vector THEN print "is part"
> > 
> > Probably a very easy thing to do, but I am missing the logical
> > operator... and help(if) is not working
> 
> check out %in%
> 
> help:
> 
> ?"%in%"
> 
> Cheers,
> 
> Rainer
> 
> > 
> > best regards, johannes
> 
> 
> - -- 
> Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation
> Biology, UCT), Dipl. Phys. (Germany)
> 
> Centre of Excellence for Invasion Biology
> Stellenbosch University
> South Africa
> 
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