1. Yes. strsplit(yourstring,"\\.")[[1:2]]
works if the format is as specified below.
2. In Jim Holtman's regex, the PERL=TRUE argument is not needed.
sub("TICKER\\.([^.]+).*","\\1",x)
works just fine.
-- Bert Gunter
Genentech, Inc.
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Johannes Hüsing
Sent: Thursday, May 01, 2008 9:45 AM
To: r-help@r-project.org
Subject: Re: [R] regular expression question
[EMAIL PROTECTED] <[EMAIL PROTECTED]> [Thu, May 01, 2008 at
06:27:15PM CEST]:
> I have strings of the form
>
> TICKER.GGG.XXXXXX.dat
>
> but GGG is not always three characters so I can't use substr to pull it
> out of the string.
>
> Could someone tell me how to use sub to pull out the GGG
Doesn't strsplit() help you more easily here?
--
Johannes Hüsing There is something fascinating about science.
One gets such wholesale returns of conjecture
mailto:[EMAIL PROTECTED] from such a trifling investment of fact.
http://derwisch.wikidot.com (Mark Twain, "Life on the Mississippi")
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