At 12:16 PM 6/11/2007, Maarten Buis wrote:
--- Xiaoheng Zhang wrote:
> But seems I can not use constraints() after
> xtprobit in Stata 8.2,right?We do not have Stata 9.
That seems to be true. One solution (apart from
ordering Stata 10) would be to estimate the model
with -gllamm-, which does allow constraints.
Hope this helps,
Maarten
You might also be able to do it with regoprob (available from ssc).
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