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st: Taking Means of Vars Across Time Period

From   Frank Zhang <>
Subject   st: Taking Means of Vars Across Time Period
Date   Wed, 16 Jun 2004 08:37:09 -0700 (PDT)

Dear Statalisters, 

I have a question regarding taking means for data
across 10 time periods. For example, 

For each of the 10 periods, I have a separate dataset

      var1   var2   var3
obs1   --     --     --
obs2   --     --     --
obs3   --     --     --

How do I taking means of var1-var3 for all
observations across those 10 time periods with STATA?
Or if EXCEL is easier, how can i do it with EXCEL.
Help me out, thank you very much. 


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