[R] character position

[Paulo Cardoso]

Thank you all. Works fine.

> -----Original Message-----
> From: Henrique Dallazuanna [mailto:wwwhsd at gmail.com]
> Sent: quinta-feira, 18 de Setembro de 2008 12:14
> To: Paulo Cardoso
> Cc: jim holtman; r
> Subject: Re: [R] character position
> 
> Try:
> 
> sub(".*FILE (\\w+)|\\.*", "\\1", x, perl=TRUE)
> 
> On Thu, Sep 18, 2008 at 7:39 AM, Paulo Cardoso <pecardoso at netcabo.pt>
> wrote:
> >
> > Perfect but when one wants to get something different, like
> >
> > x <- 'INPUT FILE record.dat'
> > sub(".*FILE (\\w+).*", "\\1", x, perl=TRUE)
> >
> > will return 'record' and not 'record.dat'
> >
> > the [:punct:] is not retained.
> >
> > Paulo
> >
> > > -----Original Message-----
> > > From: jim holtman [mailto:jholtman at gmail.com]
> > > Sent: quinta-feira, 18 de Setembro de 2008 9:58
> > > To: Paulo Cardoso
> > > Cc: r
> > > Subject: Re: [R] character position
> > >
> > > If it always occurs after 'are', this will work:
> > >
> > > > x <-  'There are 20 species in this grid'
> > > > y <- sub(".*are (\\d+).*", "\\1", x, perl=TRUE)
> > > > y
> > > [1] "20"
> > > >
> > >
> > >
> > > On Thu, Sep 18, 2008 at 4:51 AM, Paulo Cardoso
> <pecardoso at netcabo.pt>
> > > wrote:
> > > > Hi,
> > > >
> > > > I'm not being able to capture a position of a 'string' in a
> character
> > > > string.
> > > >
> > > > In this example: 'There are 20 species in this grid'
> > > >
> > > > I would like to capture the string (number) after 'are' and
> before
> > > > 'species'. Consider they do not change. I wouldn't like to use
> substr
> > > > because stop position may change.
> > > >
> > > > Thanks
> > > >
> > > > Paulo
> > > >
> > > > ______________________________________________
> > > > R-help at r-project.org mailing list
> > > > https://stat.ethz.ch/mailman/listinfo/r-help
> > > > PLEASE do read the posting guide http://www.R-
> project.org/posting-
> > > guide.html
> > > > and provide commented, minimal, self-contained, reproducible
> code.
> > > >
> > >
> > >
> > >
> > > --
> > > Jim Holtman
> > > Cincinnati, OH
> > > +1 513 646 9390
> > >
> > > What is the problem that you are trying to solve?
> > > No virus found in this incoming message.
> > > Checked by AVG.
> > > Version: 8.0.100 / Virus Database: 270.6.21/1676 - Release Date:
> 17-09-
> > > 2008 9:33
> >
> > ______________________________________________
> > R-help at r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide http://www.R-project.org/posting-
> guide.html
> > and provide commented, minimal, self-contained, reproducible code.
> 
> 
> 
> --
> Henrique Dallazuanna
> Curitiba-Paraná-Brasil
> 25° 25' 40" S 49° 16' 22" O
> No virus found in this incoming message.
> Checked by AVG.
> Version: 8.0.100 / Virus Database: 270.6.21/1676 - Release Date: 17-09-
> 2008 9:33