Tena koe Alexis
?regexpr
yourDataFrame[regexpr('G', yourDataFrame$Flags)>0,]
HTH ...
Peter Alspach
> -----Original Message-----
> From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-
> project.org] On Behalf Of Alexis Champsaur
> Sent: Wednesday, 28 April 2010 11:49 a.m.
> To: r-h...@stat.math.ethz.ch
> Subject: [R] Selecting rows based on contents of string
>
> Hi there,
> I have a data frame with a column named "Flags", whose contents are
> strings
> containing any of the following characters, multiple characters
> allowed:
> A,B,C,D,E,F,G.
>
> Here is the head:
> GeocodeID PlaceID CountyCode CBSACode StateProvCode
> PropertyTypeGroupID
> Flags
> 1 0 0 0 0
> AK 1 ABC
> 2 0 0 0 0
> AK 2 AC
> 3 0 0 0 0
> AK 3 BC
> 4 0 0 0 0
> AK 4 CD
> 5 0 0 0 0
> AK 14 CD
> 6 0 0 0 0
> AK 15 ACDE
> 7 0 0 0 0
> AL 1
>
> I want to select only the rows whose "Flag" element contains the
> character
> G. Is there a simple way to do this, or should I perhaps come up with
a
> different system of flags, which is totally up to me?
>
> Thanks,
>
> Alex
>
> [[alternative HTML version deleted]]
>
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