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RE: st: RE: Frontier,stata 8 & stata 9

From   "Nick Cox" <>
To   <>
Subject   RE: st: RE: Frontier,stata 8 & stata 9
Date   Mon, 12 Jun 2006 09:44:03 +0100

Regardless of significance or non-significance, 
forcing any model through the origin -- if that 
is what you are implying -- is usually
a good idea if and only if there are substantive
(meaning scientific) grounds for thinking that
that is the correct functional form. There is a short
but intensely intelligent discussion of the point 
in McCullagh and Nelder's 1989 book. (Reference in 
[R] glm.) 


Gauri Khanna
> Dear Scott,
> Thank you for your advice. I will look into the maximise 
> options and see if 
> it is possible to use another.
> On the noconstant option, I wanted the option of not 
> including it as for 
> certain models it was not significant. I don't think that the 
> stata versios 
> is updated which might be part of the problem as you suggest.

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