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Re: st: constraints


From   "Chiara Mussida" <cmussida@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: constraints
Date   Wed, 25 Jun 2008 16:02:55 +0200

Thanks to everybody for the helps.
I'm sorry for the repeated mails, but unfortunately I was working with
an incomplete file,
and the attempts made following the helps were useless...
Now everything seems fine

2008/6/25 Maarten buis <maartenbuis@yahoo.co.uk>:
> This is illegal syntax, you specify the equation when specifying the
> constraint not when estimating the mvprobit model. Reread carefully
> -help constraint- and you will see that you have to specify something
> like this:
>
> constraint 1 [eq1]north=1
> constraint 2 etc.
> mvprobit ..., constr(1-some number)
>
> It is up to you to figure out what the correct names of the equations
> are (probably not eq1). You can do that by estimating the unconstraint
> model and type:
> matrix list e(b)
>
> -- Maarten
>
> --- Chiara Mussida <cmussida@gmail.com> wrote:
>
>> constraint 1 north=1
>>
>> . constraint 2 centre=1
>>
>> . constraint 2 southislands=1
>>
>> . 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 e
>> > xperience) (UE=sex married loweduc compulsory diploma experience)
>> (UN=sex age married nodiploma experience), cons(1-3)
>> option constraints() not allowed
>> r(198);
>>  chiara
>>
>> 2008/6/25 Eva Poen <eva.poen@gmail.com>:
>> > Come on, you can figure that one out by yourself.
>> >
>> > My example has two different equations as well; run it. The
>> > constraints I specified are for two different equations, but the
>> same
>> > variables. You can formulate constraints for different variables,
>> of
>> > course.
>> >
>> > If you run into errors, show us the error messages you get.
>> >
>> > Eva
>> >
>> >
>> >
>> > 2008/6/25 Chiara Mussida <cmussida@gmail.com>:
>> >> 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??
>> >> Thanks a lot
>> >>
>> >> 2008/6/25 Eva Poen <eva.poen@gmail.com>:aints.
>> >>
>> >>> Is this what you are looking for?
>> >>>
>> >>> webuse sysdsn3
>> >>> constraint 1 [Indemnity]site2=1
>> >>> constraint 2 [Prepaid]site2=2
>> >>> mlogit insure age male site*,  baseoutcome(3) constraints(1-2)
>> >>>
>> >>> This could have been easily derived from -help constraint-.
>> >>> Eva
>> >>>
>> >>> 2008/6/25 Maarten buis <maartenbuis@yahoo.co.uk>:
>> >>>> Than you specify a different constraint for each equation.
>> >>>> -- Maarten
>> >>>>
>> >>>> --- Chiara Mussida <cmussida@gmail.com> wrote:
>> >>>>
>> >>>>> Sure and Thanks. But it isn't explained how to allow
>> >>>>> constraints(different) to different equation. And I'm in
>> trouble..
>> >>>>> Thanks
>> >>>>>
>> >>>>> 2008/6/25 Maarten buis <maartenbuis@yahoo.co.uk>:
>> >>>>> > --- Chiara Mussida <cmussida@gmail.com> wrote:
>> >>>>> >> is there a way to allow the constraints() option to each
>> equation
>> >>>>> of
>> >>>>> >> a multivariate probit?
>> >>>>> >
>> >>>>> > Yes, -mvprobit- allows constraints, and the way constraints
>> can
>> >>>>> work
>> >>>>> > with multiple equations is discussed in -help constraint-.
>> >>>>> >
>> >>>>> > -- Maarten
>> >>>>> >
>> >>>>> > -----------------------------------------
>> >>>>> > Maarten L. Buis
>> >>>>> > Department of Social Research Methodology
>> >>>>> > Vrije Universiteit Amsterdam
>> >>>>> > Boelelaan 1081
>> >>>>> > 1081 HV Amsterdam
>> >>>>> > The Netherlands
>> >>>>> >
>> >>>>> > visiting address:
>> >>>>> > Buitenveldertselaan 3 (Metropolitan), room Z434
>> >>>>> >
>> >>>>> > +31 20 5986715
>> >>>>> >
>> >>>>> > http://home.fsw.vu.nl/m.buis/
>> >>>>> > -----------------------------------------
>> >>>>> >
>> >>>>> >
>> >>>>> >
>> __________________________________________________________
>> >>>>> > Sent from Yahoo! Mail.
>> >>>>> > A Smarter Email http://uk.docs.yahoo.com/nowyoucan.html
>> >>>>> > *
>> >>>>> > *   For searches and help try:
>> >>>>> > *   http://www.stata.com/support/faqs/res/findit.html
>> >>>>> > *   http://www.stata.com/support/statalist/faq
>> >>>>> > *   http://www.ats.ucla.edu/stat/stata/
>> >>>>> >
>> >>>>>
>> >>>>>
>> >>>>>
>> >>>>> --
>> >>>>> Chiara Mussida
>> >>>>> PhD candidate
>> >>>>> Doctoral school of Economic Policy
>> >>>>> Catholic University, piacenza (Italy)
>> >>>>> *
>> >>>>> *   For searches and help try:
>> >>>>> *   http://www.stata.com/support/faqs/res/findit.html
>> >>>>> *   http://www.stata.com/support/statalist/faq
>> >>>>> *   http://www.ats.ucla.edu/stat/stata/
>> >>>>>
>> >>>>
>> >>>>
>> >>>> -----------------------------------------
>> >>>> Maarten L. Buis
>> >>>> Department of Social Research Methodology
>> >>>> Vrije Universiteit Amsterdam
>> >>>> Boelelaan 1081
>> >>>> 1081 HV Amsterdam
>> >>>> The Netherlands
>> >>>>
>> >>>> visiting address:
>> >>>> Buitenveldertselaan 3 (Metropolitan), room Z434
>> >>>>
>> >>>> +31 20 5986715
>> >>>>
>> >>>> http://home.fsw.vu.nl/m.buis/
>> >>>> -----------------------------------------
>> >>>>
>> >>>>
>> >>>>      __________________________________________________________
>> >>>> Sent from Yahoo! Mail.
>> >>>> A Smarter Email http://uk.docs.yahoo.com/nowyoucan.html
>> >>>> *
>> >>>> *   For searches and help try:
>> >>>> *   http://www.stata.com/support/faqs/res/findit.html
>> >>>> *   http://www.stata.com/support/statalist/faq
>> >>>> *   http://www.ats.ucla.edu/stat/stata/
>> >>>>
>> >>> *
>> >>> *   For searches and help try:
>> >>> *   http://www.stata.com/support/faqs/res/findit.html
>> >>> *   http://www.stata.com/support/statalist/faq
>> >>> *   http://www.ats.ucla.edu/stat/stata/
>> >>>
>> >>
>> >>
>> >>
>> >> --
>> >> Chiara Mussida
>> >> PhD candidate
>> >> Doctoral school of Economic Policy
>> >> Catholic University, piacenza (Italy)
>> >> *
>> >> *   For searches and help try:
>> >> *   http://www.stata.com/support/faqs/res/findit.html
>> >> *   http://www.stata.com/support/statalist/faq
>> >> *   http://www.ats.ucla.edu/stat/stata/
>> >>
>> > *
>> > *   For searches and help try:
>> > *   http://www.stata.com/support/faqs/res/findit.html
>> > *   http://www.stata.com/support/statalist/faq
>> > *   http://www.ats.ucla.edu/stat/stata/
>> >
>>
>>
>>
>> --
>> Chiara Mussida
>> PhD candidate
>> Doctoral school of Economic Policy
>> Catholic University, piacenza (Italy)
>> *
>> *   For searches and help try:
>> *   http://www.stata.com/support/faqs/res/findit.html
>> *   http://www.stata.com/support/statalist/faq
>> *   http://www.ats.ucla.edu/stat/stata/
>>
>
>
> -----------------------------------------
> Maarten L. Buis
> Department of Social Research Methodology
> Vrije Universiteit Amsterdam
> Boelelaan 1081
> 1081 HV Amsterdam
> The Netherlands
>
> visiting address:
> Buitenveldertselaan 3 (Metropolitan), room Z434
>
> +31 20 5986715
>
> http://home.fsw.vu.nl/m.buis/
> -----------------------------------------
>
>
>      __________________________________________________________
> Sent from Yahoo! Mail.
> A Smarter Email http://uk.docs.yahoo.com/nowyoucan.html
> *
> *   For searches and help try:
> *   http://www.stata.com/support/faqs/res/findit.html
> *   http://www.stata.com/support/statalist/faq
> *   http://www.ats.ucla.edu/stat/stata/
>



-- 
Chiara Mussida
PhD candidate
Doctoral school of Economic Policy
Catholic University, piacenza (Italy)
*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
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*   http://www.ats.ucla.edu/stat/stata/



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