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st: appending time periods


From   max r <maxr28@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: appending time periods
Date   Sat, 30 May 2009 23:37:08 -0400

Dear All:

I am working on a panel dataset. Couple of variables varies overtime
and across panels, others only vary across panels. Got some additonal
data for time & panel varying variables, for new time periods. I would
like append the new observations to the panel and then within each
panel ensure the records for panel only variables are applied to them
(i.e. no blanks).

example:

              panelid     timevar     dep     indep1 indep2  indep3(dummy)
                 1          1/1/2000    321      899     12                 1
                 1          2/1/2000    882      980     34                 1
add=>        1         3/1/2000     698      898     87    (here I
want the above value to apply instead of a blank)

                 2         1/1/2000      338      768    90



thanks,
Max
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