[R] Get the last 3 chars of a string

Gabor Grothendieck ggrothendieck at gmail.com
Mon Oct 15 19:58:13 CEST 2007


Here is an alternative:

sub(".*(..)$", "\\1", x)

and using strapply in gsubfn its even shorter:

library(gsubfn)
strapply(x, "..$")

On 10/15/07, Sergio Correia <sergio.correia at gmail.com> wrote:
> I want to extract the last 3 letters of a string.
>
> So far, I've done this:
>
> > symbol = 'XYZ.VX"
> > substr(symbol,nchar(symbol)-2,nchar(symbol))
> [1] ".VX"
>
> It works, but the code looks UGLY as hell. Am I missing something? Or
> is this the way it's supposed to be?
>
> Thanks,
> Sergio
>
> On 10/15/07, pintinho <diego at bpgomes.com> wrote:
> >
> > Hi everyone,
> >
> > When I try to import data do R, the following message appears: "\Uxxxxxxxx
> > sequences are not supported on Windows".
> >
> > I tried lots of methods to import (read.csv, read.table, RODBC, read.delim)
> > and the same message appears for all these methods. I think it is a bigger
> > problem.
> >
> > Can anyone help me solving this issue?
> >
> > Thanks a lot.
> >
> >
> >
> > --
> > View this message in context: http://www.nabble.com/ERROR-while-importing-data-tf4628752.html#a13216707
> > Sent from the R help mailing list archive at Nabble.com.
> >
> > ______________________________________________
> > 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.
> >
>
> ______________________________________________
> 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.
>



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