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st: how to distinguish observations with the same code


From   "natalie chan" <natalie.channew@googlemail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: how to distinguish observations with the same code
Date   Mon, 7 May 2007 13:59:16 +0100

Dear statalisters,

This may be an elementary question but I could not find a solution in
Stata and the list archives, so here I am.

I am working with two large datasets, each including more than
100,000 firms from two countries respectively. Each firm is assigned a
code number. so the structure of both datasets is as follows:

Code   sales profit turnover

1              3        4         6

2              3        5         6

3              7        4         2

…

1000000   4       5         8

I have put the two datasets into one dataset using "Append", however,
how can I distinguish the firms from different regions since they have
the same code? Is it possible to generate a new variable with the
prefix before the code, for example, "german1"  "france1" etc.?


Thanks.

Natalie

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