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st: how to distinguish observations with the same code


From   Kit Baum <baum@bc.edu>
To   statalist@hsphsun2.harvard.edu
Subject   st: how to distinguish observations with the same code
Date   Mon, 7 May 2007 09:36:54 -0400

sacrificial lamb

Natalie wrote

I have actually created a new variable country to distinguish the
firms before appending, I am wondering if it is possible to create a
new variable combining the information of "code" and "country", so
that the observations can be distinguished by one variable? Thanks
alot.

This is a FAQ.

gen idcode = country + string(code)

If you want a fixed length code (assuming countrycode is of fixed length, e.g. ISO) then use string(code,"%9.0f") or something like that.


Kit Baum, Boston College Economics and DIW Berlin
http://ideas.repec.org/e/pba1.html
An Introduction to Modern Econometrics Using Stata:
http://www.stata-press.com/books/imeus.html


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