To be on the safe side in case there are other characters at the end
of the string, use:
> mytext <- "I do not want the first number 1234, but the second number
> 5678sadfsadffdsa"
> # make sure you get 4 digits
> sub("^.*second number[^[0-9]]*([0-9]{4}).*", "\\1", mytext)
[1] "5678"
>
On Thu, Aug 25, 2011 at 7:00 PM, Lorenzo Cattarino
<l.cattar...@uq.edu.au> wrote:
> I R-users,
>
> I am trying to find the way to manipulate a character string to select a 4
> digit number after some specific word/s. Example:
>
> mytext <- "I do not want the first number 1234, but the second number 5678"
>
> Is there any function that allows you to select a certain number of digits
> (in this case 5678) after a particular word/s (e.g., second number)
>
> Thank you for your help
>
> Lorenzo
>
>
> [[alternative HTML version deleted]]
>
> ______________________________________________
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
--
Jim Holtman
Data Munger Guru
What is the problem that you are trying to solve?
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