st: RE: new variable from 2 datasets

["Wanli Zhao" <zhaowl@temple.edu>]

I have 2 datasets. Each one has 10 variables and they share the same names
across the 2 data files. Is there a quick way to generate the third file
which has the differenced values for each variables in the 2 original files?
Thanks.

Cheers,
Wanli

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