[R] regular expression submatch?

Steve Lianoglou
Mon, 01 Feb 2010 19:03:43 -0000

Hi,

On Mon, Feb 1, 2010 at 1:57 PM, sjaffe <sjaffe at riskspan.com>
wrote:
>
> What is the simplest way to extract a matched subexpression?
>
> Eg. in perl you can do
>
> "hello world" =~ m/hello (.*)/
>
> which would return 1(true) and set $1 to the matched subexpression
"world".

Read through the documentation and examples in the gregexpr help page
(?gregexpr from the R prompt)

-steve

--
Steve Lianoglou
Graduate Student: Computational Systems Biology
 | Memorial Sloan-Kettering Cancer Center
 | Weill Medical College of Cornell University
Contact Info: http://cbio.mskcc.org/~lianos/contact