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st: Data management

From   "Roy,Suryadipta" <>
Subject   st: Data management
Date   Sat, 24 Mar 2007 16:59:07 -0500


I have a panel data of (say) 100 countries for 10 years. I am trying to attach identification numbers for these countries based on another dataset for merging purposes later on. So, I started with

a. egen id= group(code), where "code" is the code numbers of these countries, e.g. ABW, AFG etc.

b. Then I am trying to replace these id-s with
replace id=3 if id==1;
replace id=5 if id==2;
replace id=8 if id==3;

But the 3rd line of the command is replacing the first set of id-s also. I would greatly appreciate if someone can suggest how to take care of this.

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