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RE: st: panel data


From   <Rivard.Maud@fin.gc.ca>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: panel data
Date   Fri, 20 Feb 2004 10:03:34 -0500

Hi Devendra,
One way to go about it (maybe not the most efficient) would be the following:

destring gender, generate(genderno)
egen gendernew = min(genderno), by(id)
replace genderno = gendernew if genderno==.
drop gendernew


 -----Original Message-----
From: 	Devendra Amre [mailto:damre@justine.umontreal.ca] 
Sent:	February 20, 2004 9:25 AM
To:	statalist@hsphsun2.harvard.edu
Subject:	re: st: panel data

Hi,
I have a longitudinal (panel) data set with variables that are constant over
time (e.g. gender). Some of the entries for an individual are missing
(actually not entered) and I wish to fill in these missing entries.

ID        Gender        Year
1            M                1991
1            .                  1992
1            .                  1993
1            M                1994
2            .                   1988
2            F                 1989
2            .                   1990
2            .                   1991

Can you suggest a way to fill in these missing entries?
Many thanks in advance.

Devendra Amre MBBS., Ph.D.
Assistant Research Professor/Chercheur Adjoint
Epidemiology/Dept of Pediatrics
Sainte Justine Hospital

3175, Cote Sainte Catherine
Montreal-Canada H3T 1C5
Voice: 514 345 4931 extn 3599
Fax: 514 345 4801
damre@justine.umontreal.ca


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