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st: RE: Average for panel data


From   SERGIO MOISES AFCHA CHAVEZ <s.afcha@ub.edu>
To   statalist@hsphsun2.harvard.edu
Subject   st: RE: Average for panel data
Date   Wed, 15 Jul 2009 20:34:30 +0200

Dear Martin Weiss,

Thanks for your fast response, but I think I explain my question badly:

In your solution:

gen newV3=sum(V3)/sum(V3!=.)

Sum (V3) is a sum of all observations, I have a panel data, so, the Id variable
continue with 2,3....3500 and I need the average variable for every 
individual in my database. I think I could obtain this with: 

by id: gen newV3=sum(V3[_n])

But, I don't know how continue with that, I need to divide this between the
number of the years with valid observation, and I don't know how express this
with STATA. 

Thanks,

Sergio
 






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