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Re: st: Extracting Numbers from Strings


From   Phil Schumm <pschumm@uchicago.edu>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Extracting Numbers from Strings
Date   Wed, 24 Dec 2008 13:57:44 -0600

On Dec 24, 2008, at 1:24 PM, jasonm@ucla.edu wrote:
I'm trying to extract the first number after a hyphen. For example, from x="1234-1" I want to create y=1.


gen y = regexs(1) if regexm(x,".*-([0-9]+)")

will work if the number after the hyphen is always a positive integer. The same approach can be easily modified to accommodate negative and/or decimal numbers (i.e., by modifying the regular expression).


-- Phil

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