///
Still, unclear... are you doing regressions? If ML seems complicated you
could try -nl-, but it requires some programming, I would not say
complicated.
-----Mensaje original-----
De: [email protected]
[mailto:[email protected]] En nombre de Teresa Linz
Enviado el: Martes, 29 de Julio de 2008 02:45 p.m.
Para: [email protected]
Asunto: Re: st: RE: Positivity
Yes that is exactly what I mean. I have heard that this reparamrisation
is quite complicated in Stata, is that right? How can I do it in detail?
Thank you for your answer so far
Teresa
On Tue, 29 Jul 2008 18:49:32 +0100
"Nick Cox" <[email protected]> wrote:
> If you mean: How can I ensure that I get positive estimates for
>coefficients I expect to be positive, the answer is to reparametrise in
>terms of logarithms.
>
> Otherwise, please expand on this question.
>
> Nick
> [email protected]
>
> Teresa Linz
>
> And I have another question; does anybody know how I could programme
>positivity for some coefficients in Stata?
>
> *
> * 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/
_______________________________
Teresa Linz, M.Sc.
Junior Researcher
Center for Development Research
Walter-Flex-Str. 3
53113 Bonn
Germany
Tel.: +49 228/73 4962
Fax: +49 228/73 1869
Internet: www.zef.de
*
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