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st: Loop over time

From   Dmitriy Krichevskiy <>
To   statalist <>
Subject   st: Loop over time
Date   Thu, 11 Mar 2010 11:05:59 -0500

Hello Statalisters,
I have a small problem which I seem to be unable to solve. I have a
large panel dataset. But the creators of the data did not carry
variables such as race and gender beyond the first entry of an
individual in the dataset. I am attempting to fix this issue via
creating a simple loop but get an error message that time series
operators are not allowed (even though I have declared the dataset
xtset, and even tried tsset). Below I provide an examples of the data,
all help is much appreciated, as always. Dmitriy

id   time sex race ....
1     2     M    W
1     3      .      .
2     1     F     H
3     1     F     B
3     2     .      .
3     3     .      .

Research Associate, College of Education
Lumina Foundation Project
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