st: how to distinguish observations with the same code

[Kit Baum <baum@bc.edu>]

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


*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/