Is this what you want: depends on it occurring at the endo of the string:
> grep("\\.x[^x]*$",c("a.x" ,"b.x","a.xx"),value=TRUE)
[1] "a.x" "b.x"
On Mon, Nov 2, 2009 at 9:57 AM, Vito Muggeo (UniPa)
<vito.mug...@unipa.it> wrote:
> dear all,
> This is a probably a silly question.
> If I type
>> grep("x",c("a.x" ,"b.x","a.xx"),value=TRUE)
> [1] "a.x" "b.x" "a.xx"
>
> Instead, I would like to obtain only
> "a.x" "b.x"
> How is it possible to get this result with grep()?
>
> many thanks for your attention,
> best,
> vito
>
> --
> ====================================
> Vito M.R. Muggeo
> Dip.to Sc Statist e Matem `Vianelli'
> Università di Palermo
> viale delle Scienze, edificio 13
> 90128 Palermo - ITALY
> tel: 091 6626240
> fax: 091 485726/485612
> http://dssm.unipa.it/vmuggeo
>
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--
Jim Holtman
Cincinnati, OH
+1 513 646 9390
What is the problem that you are trying to solve?
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