Hi -
I'd like to first difference all of the variables in my equation. I have a
panel dataset which is -xtset dmaid year-. The following command seems to work
quite well for one of my variables:
by dmaid, sort: generate fdpop=pop[_n]-pop[_n-1]
I'm wondering:
a) if there is a built-in command to do this for an entire equation (as opposed
to doing it variable by variable)?
b) if not, if there is a way to automate this procedure for all of my (many)
variables?
Thanks,
Nola
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