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st: a question about panel data

From   Shuaizhang Feng <[email protected]>
To   [email protected]
Subject   st: a question about panel data
Date   Thu, 28 Jul 2005 11:43:23 -0700 (PDT)

Dear Stata Users:

I have a panel data with i is id (person) and t is
year. Suppose I have only three years. Since I have a
unbalanced panel, I want to find how many persons (i)
have only 1 year's data, and how many have only 2
years' data, and how many have 3 years data. 

Is there a convenient way to do this in Stata? Thanks
for your help in advance.


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