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st: RE: constructing an unbalanced panel data set based on existing range variables


From   "Alex Ogan" <[email protected]>
To   <[email protected]>
Subject   st: RE: constructing an unbalanced panel data set based on existing range variables
Date   Wed, 29 Mar 2006 10:43:49 -0500

expand ((End - Start) + 1)
bysort ID: gen IDyear = string(ID) + string(Start + _n - 1)

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Arik
Sent: Wednesday, March 29, 2006 9:59 AM
To: [email protected]
Subject: st: constructing an unbalanced panel data set based on existing
range variables

Hi, I have a list of observations by unit (firm),
which I would like to transfrom into a panle data set,
by year/unit.

Right now, the first variables of the observations
look something like

ID      Start      End      Industry
1       1985       1990        3
2       1988       1991        1
3       1982       1993        3

And I'd like them to look like

IDyear       Industry
11985            3
11986            3            
11987            3
11988            3
11989            3
11990            3
21988            1
21989            1
21990            1
21991            1
31982            3
31983            3
...
31993            3

Reshape does not seem to help, as I have a
(unbalnaced) range, rather then a fixed list of
variables. Any ideas, what I can do?

Cheers, 

Arik

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