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st: RE: RE: 2k problem in forvalues


From   "Nick Winter" <nwinter@policystudies.com>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: RE: 2k problem in forvalues
Date   Wed, 27 Nov 2002 11:30:44 -0500

> -----Original Message-----
> From: Jiang, Tao [mailto:TJiang@air.org] 
> Sent: Wednesday, November 27, 2002 11:22 AM
> To: 'statalist@hsphsun2.harvard.edu'
> Subject: st: RE: 2k problem in forvalues
> 
> 
> I tried something on foreach, and I don't see why it doesn't work.
> 
> Eg:
> . foreach j in 99 00 01 {
>   2. di "`j'"
>   3. }
> 99
> 00
> 01
> 

This works because -foreach j in- takes a literal list of arbitrary
objects.  -forvalues-, on the other hand, takes a numlist.  So the
-foreach in- usage works fine for a list of three years, but it would
have to be

. foreach j in 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 01
{

for a longer list of years.  -forvalues- knows how to fill in the
numlist automatically, but doesn't maintain a leading zero.  Thus my
solotuion, posted before.

Nick Winter
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