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st: identifying changed variables


From   "Feiveson, Alan H. (JSC-SK311)" <alan.h.feiveson@nasa.gov>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: identifying changed variables
Date   Mon, 9 Jul 2007 10:29:59 -0500

Hi  - After changing one or more variables, (in Stata 9) the -describe-
command reveals that changes have been made, but it doesn't say which
variables have changed. Does anyone know of a way to identify which
variables actually changed? For example, suppose one had 100 variables
and one created a number of new ones and/or modified old ones. Suppose
also that the user wants to keep the new data set only if "important"
variables were created or changed, but that he/she forgot which ones
were modified/created. Otherwise, if the command -save,replace- is
issued without "important" variables being changed, a lot of unwanted
"junk" variables would now be attached to the data set. Therefore it
would be useful to know exactly which variables were changed.

Al Feiveson


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