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st: Merge data

From   "Lok Wong" <>
Subject   st: Merge data
Date   Wed, 12 Nov 2003 03:57:36 +0000


I have one question about merging data..I am wondering if someone out there could help me with it.

Let's say data sets, A and B.. A includes {X1,X2,X3,X4} and B includes{X1,X2,X5}..Using X1 and X2, we could uniquely identify the individuals in the data...Moreover,the sample size of B is bigger that of A..I only want X5 of individuals in B who are also in A...How could I do this?

Thanks a lot..


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