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Re: st: Display one observation


From   David Bell <dcbell@iupui.edu>
To   <statalist@hsphsun2.harvard.edu>
Subject   Re: st: Display one observation
Date   Wed, 15 Sep 2010 14:16:48 -0400

--
Or if you want the last and it is not cumulative..
If you just want to know the last value per year without adding anything to your dataset, then
-preserve-, -drop- missings, and -collapse (last)-

Dave
====================================
David C. Bell
Professor of Sociology
Indiana University Purdue University Indianapolis (IUPUI)
(317) 278-1336
====================================




On Sep 15, 2010, at 2:02 PM, Dimitriy V. Masterov wrote:

> If your sums is monotonic, as it appears to be, I think this should work:
> 
> bys year: egen maxcs=max(cusum)
> 
> I get this:
> 
> year	cusum	maxcs
> 2000	2	8
> 2000	4	8
> 2000	6	8
> 2000	8	8
> 2000		8
> 2000		8
> 2001	5	12
> 2001		12
> 2001	6	12
> 2001	12	12
> 
> 
> HTH,
> DVM
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