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| From | Maarten Buis <maartenlbuis@gmail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | Re: st: mprobit with exclusion restriction |
| Date | Wed, 23 Nov 2011 11:55:54 +0100 |
On Wed, Nov 23, 2011 at 11:25 AM, saqlain raza answered privately: > I am trying to understand what you said about -mprobit- command and I am > agree that error correlations are independent. I studied the literature of > Train (2003) about probit models. He says that > "With probit models, however, normalization for scale and level does not > occur automatically. The researcher must normalize the model directly." > Could you please tell me how can we normalize it? OR is there any command in > Stata to normalize? OR is it -mprobit- command that automatically normalize > the scale and level of utility? I am asking you because I do not understand > these sentences about normalization. And how could we confirm after > estimation that the errors are really uncorrelated? I would need to see that quote in context as I can think of multiple ways in which I could interpret that quote. However, right now I don't have time to look it up. So, you'll have to hope that somebody else on Statalist will respond. > My question may be silly thats why I am trying to write you email and not on > group. Your suggestions will be appreciated. Follow up questions are best sent to Statalist and not to individual members, as is discussed on the Statalist FAQ <http://www.stata.com/support/faqs/res/statalist.html#private>. Think about it this way: By sending me a question you ask me to invest my time to solve your problems. Why would I be more willing to answer silly questions privately than publicly? The answer is that, unless you are willing to pay a ridiculously high consulting fee, I am not willing to answer private questions. -- Maarten -------------------------- Maarten L. Buis Institut fuer Soziologie Universitaet Tuebingen Wilhelmstrasse 36 72074 Tuebingen Germany http://www.maartenbuis.nl -------------------------- * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/