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Hi,
My data looks like this:
ID ICODE NUM;
1000 2000 3
1000 2000 3
1000 2000 3
1001 2020 2
1001 1010 2
1002 1010 3
1002 1010 3
1002 1020 3
ID is the firm id, ICODE is another variable, NUM is the number of
firms that share the same id. I want to find out that for all firms
that share the same id, if they also share the same icode (for example
for id 1000), I will put them in a separate dataset. For all the other
firms (e.g., id 1001 and 1002), not all the firms share the same id
also share the same icode, I will put them in a different dataset. How
can I do this?
Thanks a lot!
Fun
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