[R] using grep

William Dunlap wdunlap at tibco.com
Sat Feb 27 00:03:23 CET 2010


> -----Original Message-----
> From: r-help-bounces at r-project.org 
> [mailto:r-help-bounces at r-project.org] On Behalf Of kayj
> Sent: Friday, February 26, 2010 12:02 PM
> To: r-help at r-project.org
> Subject: Re: [R] using grep
> 
> 
> Hi ,
> 
> I have tried
> 
> gsub(".*York(\\d+).*", "\\1", grep("New York", x, value = TRUE)) 
> 
> and outputs 
> 
>  "P New York722AZ" "K New York20" 
> but that is not what i want, I want the output to be 
> 
> 722,20

Does it work if you replace the "\\d" in
the pattern with "[0-9]"?  If so, your
regular expression code doesn't recognize
the "\\d" to mean "a decimal digit".

Bill Dunlap
Spotfire, TIBCO Software
wdunlap tibco.com  

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