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st: Generating new lines/record for groups of data
From
Navid Asgari <[email protected]>
To
[email protected]
Subject
st: Generating new lines/record for groups of data
Date
Tue, 22 May 2012 23:51:14 +0800
Hi all,
I would like to add new records to my data by groups. My longitudinal
data-set looks like this (the maximum length of a panel is 4
years[from 1990 to 1993, but some Firms have less observations, so I
have an unbalanced panel data])
Firm_ID Year var1 Var2
-------------------------------------------
G33 1990 2 2.5
G33 1991 3.4 1.2
G33 1992 5.6 2.8
G33 1993 8.1 9.2
KL1 1992 3 2.22
As you can see "G33" has three records from 1990 to 1993... Now I want
to make it look like a balanced panel data:
Firm_ID Year var1 Var2
-------------------------------------------
G33 1990 2 2.5
G33 1991 3.4 1.2
G33 1992 5.6 2.8
G33 1993 8.1 9.2
KL1 1992 3 2.22
KL1 1990 . .
KL1 1991 . .
KL1 1993 . .
Thanks in advance!
Navid
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