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Re: st: how to keep first four figures of a variable


From   Philipp Rehm <Philipp.Rehm@gmx.de>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: how to keep first four figures of a variable
Date   Sat, 08 Jul 2006 10:39:37 +0200

This may work:
gen new=real(substr(string(original),1,4))

(I don't know how hypothetical your numbers are, but if your variable
"original" reports dates, check out -help date functions- to extract,
say, the year).

HTH,
Philipp



FUKUGAWA, N. wrote:
> Dear Statalisters,
> I would like to make a change in a variable.
> A new variable keeps only first four figures of ten-digit variable.
> 
> original -> new
> 1980000123 -> 1980
> 1996123456 -> 1996
> 
> How do I generate such variable using Stata?
> Thank you in advance.
> ---
> FUKUGAWA Nobuya, Ph.D.
> nfukugawa@gmail.com
> See my works at www.ssrn.com
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