st: Creating loops to drop observations each time regression is run

[Samia Tavares <samia.tavares@rit.edu>]

Hi everyone!

I have a panel consisting of different countries for a number of  
years. I am trying to write a program that would tell Stata to run a  
regression while each time dropping a particular country (in other  
words, all the years for which that country has observations). All I  
have so far is the manual version:

use dataset.dta, clear
drop if code=="country1"
regress y x

use dataset.dta, clear
drop if code=="country2"
regress y x

and so forth. I am clueless as to how to write programs, so any help  
will be immensely appreciated!!

Samia
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