Chiara Mussida wrote:
yes, but it is related to the same eq specified w r to 2 different cons.
In a mvprobit I have 6 different equations with 6 different constraints:
mvprobit (private = years logptax loginc) (vote = years logptax
loginc) (pub12 = years loginc):
how could I add different cons to each eq??
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It would be like the following:
use http://www.stata-press.com/data/r7/school.dta, clear
constraint define 1 [private]loginc = 0.4
constraint define 2 [vote]loginc = 0.6
mvprobit (private = years logptax loginc) ///
(vote = years logptax loginc, nocons), constraints(1 2)
exit
If I copied the -mvprobit- command from your last post correctly, it looks
as if you've got two equations (UE and UN) represented thrice each in your
model:
mvprobit(UE=sex age xfamsize loweduc compulsory diploma ///
urate experience north centre southislands, constraints(1)) ///
(UN=sex age married xfamsize loweduc compulsory diploma experience) ///
(UE=sex age newdiploma urate experience) ///
(UN=sex age famsize loweduc compulsory diploma experience) ///
(UE=sex married loweduc compulsory diploma experience) ///
(UN=sex age married nodiploma experience), cons(1-3)
I'm surprised that you hadn't got an error message like
Equation/parameter /private/ multiply defined
r(110);
in a pilot run prior to attempting applying constraints.
Joseph Coveney
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