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Re: st: superposed rolled windows


From   "Michael S. Hanson" <mshanson@mac.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: superposed rolled windows
Date   Tue, 27 Jun 2006 11:23:11 -0400

On Jun 27, 2006, at 10:30 AM, irodriguez wrote:

But i dont want all the observations
for example if a firm has observations for 1990-2004 the new database will
have observations for 1990-2002. In the same way for a firm with data for
1990-1995 will have observations for 1990-1993
Have you tried my code using -tsset- and the forward operator? All the problems you mention should be addressed by it. In addition, you'll likely learn some useful Stata commands and structures (such as simple looping). That said, I still would caution against dropping observations rather than leaving in the missing values. If you do drop, be sure to -save- your new dataset under a different name, in case you need to work with the original data later. HTH.

-- Mike

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