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st: reshape, dropping empty variables
I am having a bit of challenging time with the reshape command in
stata, and was hoping someone had some advice.
I have 8 years of data, and it is currently in long format. I have a
large number of variables in the dataset. Some of the variables have
data for all eight years, but many have data only for 2002-2005 or
alternatively only for 1998-2001. Therefore, when I reshape the data
from long to wide, I end up with a huge number of "empty" variables,
that have no values at all, and are therefore unnecessary.
I am looking for a way to drop all these empty variables, without
inspecting one at a time.
Is there a quick way to do this?
Any help would be greatly appreciated.
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