R help - Nov 2006 - Position of a specific letter in a character string

Dear useR,

x is a character string

In R:
> x<- '32159_3'
Which function could enable me to determine the position of underscore in x? In
here,  the underscore is on the 6th digit of x.


---
Yours Sincerely

Leon


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here's one way
> x <- "1234_5"
> regexpr("_",x)
[1]  5
attr(,"match.length")
[1] 1

so
> regexpr("_",x)[1]
[1] 5

there's probably an easier way, but this works.

tim





On 11/2/06, Am Stat <amstat2006@gmail.com> wrote:
>
> Dear useR,
>
> x is a character string
>
> In R:
>
> > x<- '32159_3'
>
> Which function could enable me to determine the position of underscore in
> x? In here,  the underscore is on the 6th digit of x.
>
>
> ---
> Yours Sincerely
>
> Leon
>
>
>         [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help@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.
>


-- 
Tim Calkins
0406 753 997

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