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st: how to distinguish observations with the same code
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
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
An Introduction to Modern Econometrics Using Stata:
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