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st: RE: combine two datasets
From
Joe Canner <[email protected]>
To
"[email protected]" <[email protected]>
Subject
st: RE: combine two datasets
Date
Thu, 19 Dec 2013 01:46:57 +0000
Wanhaiyou,
Try:
use A, clear
append using B
sort id year
This is a pretty basic Stata operation, so you should probably spend some time familiarizing yourself with the Stata -help- command and other online resources that provide Stata tutorials.
Regards,
Joe Canner
Johns Hopkins University School of Medicine
________________________________________
From: [email protected] [[email protected]] on behalf of 游万海 [[email protected]]
Sent: Wednesday, December 18, 2013 7:53 PM
To: [email protected]
Subject: st: combine two datasets
Dear all,
I have two dataset A and B,
A:
id year var1 var2
1 2001 1 2
1 2002 3 4
1 2003 5 6
2 2001 1 2
2 2002 3 4
2 2003 5 6
3 2001 1 2
3 2002 3 4
3 2003 5 6
B:
id year var1 var2
1 2004 1 2
2 2004 3 4
3 2004 5 6
And I want to obtain the dataset C
id year var1 var2
1 2001 1 2
1 2002 3 4
1 2003 5 6
1 2004 1 2
2 2001 1 2
2 2002 3 4
2 2003 5 6
2 2004 3 4
3 2001 1 2
3 2002 3 4
3 2003 5 6
3 2004 5 6
Thanks very much
Bests,
wanhaiyou
Hunan University
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