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st: non negative and integer - ipolate and epolate
Samira Reis had difficulty sending this to the list.
My own suggestion -- so long as all values are positive --
is that Samira should consider logging, interpolating
on the logarithmic scale and then antilogging.
Or take square roots -- that doesn't ensure positive
values either, but there are several grounds for
regarding square roots as "first aid" (Tukey) for
I would be less worried about integer values myself.
Samira Reis [mailto:email@example.com]
Hi Stata users,
I have a data set from 1980 to 2003 with some missing values for both
dependent and independent variables. I tried using ipolate command in
stata to get values and I used:
by reg: ipolate ent year, gen (ient) epolate.
The problem was that I obtained quite a few negative values and my
variables can not be negative and my dependent variable must be integer
as well. Could anybody help me to find out a
correct way to deal with that, please?
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