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Re: st: using regex
From
Phil Clayton <[email protected]>
To
<[email protected]>
Subject
Re: st: using regex
Date
Fri, 03 Dec 2010 09:05:38 +1030
Why not just:
gen fips=trunc(real(code)/1000)
That creates fips as a numeric variable rather than string variable. You could
always add a string() function if you wanted it in string format for some reason.
Phil
On Fri 03/12/10 09:22 , Rijo John [email protected] sent:
> Hi statlist,
>
> I have a string variable (code) with state and county codes merged.
> For example, the observation 12001 indicate that the first 2 digits
> are state codes and the remaining 3 digits are county codes. I want to
> create a new variable (fips) only with the state code. I use the
> following
>
> gen fips = regexs(0) if(regexm(code, "[0-9][0-9]"))
>
> and it works fine when the code contains 5 digits. But if a particular
> state code is only 1 digit and thereby the string "code" only has
> atotal of 4 digits the trick above does not work. In such cases I want
> to only extract the first digit.
> Can someone help?
>
> Thanks.
> Rijo.
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