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st: RE: Creating new observations
From
"Martin Weiss" <[email protected]>
To
<[email protected]>
Subject
st: RE: Creating new observations
Date
Tue, 15 Jun 2010 19:50:04 +0200
<>
This can be done, but is unusual and rare:
***********
clear*
inp str1 Country byte(Income Population)
A 5 5
B 3 3
N 3 3
end
set obs `=_N+1'
replace Country=Country[1]+"+"+Country[2] in l
replace Income=Income[1]+Income[2] in l
replace Population=Population[1]+Population[2] in l
list, noo
***********
HTH
Martin
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Ida Johnsson
Sent: Dienstag, 15. Juni 2010 19:37
To: [email protected]
Subject: st: Creating new observations
Hi!
I am new to Stata and have the following problem. How do I create new
observations if I have panel data, for example
Country Income Population
A 5 5
B 3 3
... ... ...
... ... ...
... ... ...
... ... ...
N 3 3
and want to add observations that are grouped values for certain
countries, for example
Country Income Population
A 5 5
B 3 3
... ... ...
... ... ...
... ... ...
... ... ...
N 3 3
A+B 8 8
Thanks a lot!
Ida
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