[R] trim function in R

Gabor Grothendieck ggrothendieck at gmail.com
Mon Jul 24 16:13:20 CEST 2006


A . (dot) matches any character and $ matches the end of string so
this replaces the last two characters with the empty string:

   sub("..$", "", x)


On 7/24/06, Wade Wall <wade.wall at gmail.com> wrote:
> Hi all,
> I am looking for a function in R to trim the last two characters of an
> 8 character string in a vector.  For example, I have the codes
> 37-079-2, 370079-3,37-079-8 and want to trim them to 37-079 by
> removing the last two characters.  Is sub the correct function to use,
> and if so how can I specify trimming the last 2 characters?  I have
> read the help file, but can't quite figure out how to do it.
> Thanks,
> Wade
>
> ______________________________________________
> R-help at stat.math.ethz.ch 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.
>



More information about the R-help mailing list