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Re: st: merging dataset


From   <dan@amplecat.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: merging dataset
Date   Fri, 31 Aug 2007 11:28:00 -0400

See -help merge-, "update" option.

Daniel Waxman

-----Original Message-----

From:  "Rima Chakravarty" <Rima.Chakravarty@dornc.com>
Subj:  st: merging dataset
Date:  Fri Aug 31, 2007 9:13 am
Size:  1K
To:  <statalist@hsphsun2.harvard.edu>

Wondering if anybody can help me with this. I want to merge two dataset (AA and BB) based on ID. 

Dataset AA
ID    Var 1   Var 2   Var 3 
12     785     .         748
45     74       2        63
74     789     0        7485


Dataset BB
ID    Var 1   Var 2    Var 3
12      .         45        748
94      41       78        74
74      789     0          7485

I have used the merge command but the problem with that is that the dataset BB has missing value for ID =12 (Var 1). I want to replace the non-missing value in the merged dataset with the missing value and I think the merge command do not do that. Everything else did correctly.

Any suggestion !

Rima


_______________________________________________________________

Rima Chakravarty
Economist
Policy Analysis and Statistics Division
NC Department of Revenue
Phone: 919.733.7738



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