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st: Keeping variable After restore


From   "C.T. Shehzad" <C.T.Shehzad@rug.nl>
To   statalist@hsphsun2.harvard.edu
Subject   st: Keeping variable After restore
Date   Mon, 09 Nov 2009 15:22:05 +0100

Dear Stata-listers:

I want to generate a variable during (preserve - restore) and want to use that after restoring the data. When I will restore data the variable will be dropped automatically. How can I keep the variable?

The data is time series and a simple version of my program is as follows:

preserve
keep if year == 2000
factor x1 x2 x3
predict var1
restore

gsort -year
replace var1= var1[_n-1] if var1 >= .
xtset country year
xtreg dep var1 controls

The problem in this program is that after restoring the data I will not have var1 anymore. What can be a possible solution?

Thanks and best regards,

Tanveer



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