[R] Index of Character

[Joshua Wiley]

Hello,

This does what you are looking for:

> regexpr("4", "Test1234")
[1] 8
attr(,"match.length")
[1] 1

see ?regexpr  also ?regexp for more details on regular expressions in R.

HTH,

Josh

On Wed, Jun 30, 2010 at 7:48 PM, harsh yadav <harsh.delhi at gmail.com> wrote:
> Hi,
>
> I am a newbie to R and this may be too simple to ask.
>
> I am trying to find out a string function in R that returns the index of a
> character.
>
> For e.g. indexOf("Test1234", '4') would return 8.
>
> Is there a similar function in R.
> I tried searching the documentation and could find other useful string
> functions, but not the index function.
>
> Thanks in advance.
>
> Regards,
> Harsh Yadav
>
>        [[alternative HTML version deleted]]
>
> ______________________________________________
> 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.
>



-- 
Joshua Wiley
Ph.D. Student, Health Psychology
University of California, Los Angeles
http://www.joshuawiley.com/