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st: combine two datasets
From
游万海 <[email protected]>
To
[email protected]
Subject
st: combine two datasets
Date
Thu, 19 Dec 2013 08:53:04 +0800 (GMT+08:00)
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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