Hello statalisters-
I've run into a problem using clarify on a multiply imputed dataset.
I want to run my base model with a dummy for each year, then a model
with dummies for year and country. To run the first model, I used
mido xi (before running my model) to generate sets of dummy variables
(21 total). Then I attempted to use estsimp [oprobit (various
variables) _Iyear*]. However, stata gives this error message:
Stata has dropped one of your independent variables.
Please re-specify your model and try again.
r(198);
I've checked and it's definitely a problem with the _Iyear* variables.
It actually works ok with the country dummies (there are 58 of
these). Does anybody have any insight they could offer?
Thanks,
Chris
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