The following is TRUE if the indicated string is found:
regexpr("sdhch", "gdfsa-sdhchc-88") > 0
See ?regexpr
Either of the next two will break up a string into words. The
first needs to know the delimiters whereas the second
needs to know the contents:
> strsplit("gdfsa-sdhchc-88", "\\W+")[[1]]
[1] "gdfsa" "sdhchc" "88"
> library(gsubfn)
> strapply("gdfsa-sdhchc-88", "\\w+", c)[[1]]
[1] "gdfsa" "sdhchc" "88"
See ?strplit and ?regex and also the gsubfn home page at:
http://gsubfn.googlecode.com
where you can find info on strapply and also further resources
on regular expressions.
On Mon, May 11, 2009 at 10:07 AM, RON70 <ron_michae...@yahoo.com> wrote:
>
> Hi all, is there any function to find some words in a character-string? For
> example suppose the string is : "gdfsa-sdhchc-88", now I want to find
> whether this string contains "sdhch". Is there any R function to do that?
>
> Regards,
> --
> View this message in context:
> http://www.nabble.com/Searching-within-a-ch.-string-tp23484010p23484010.html
> Sent from the R help mailing list archive at Nabble.com.
>
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