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Re: st: ml within ml?

From   Maarten buis <>
Subject   Re: st: ml within ml?
Date   Mon, 8 Oct 2007 08:51:59 +0100 (BST)

--- Timothy Dang <> wrote:
> I'm trying to use -dirifit- within a d0 -ml- evaluation program. At
> the end of the function when I try to use -mlsum-, I get the message
> "ml model not found".
> I'm thinking that using -dirifit- has made Stata forget about the
> original ml model which called the evaluator in the first place? Does
> this sound correct? 

This sounds like a reasonable explanation. 

> And if so, is there a way to recall that information?

I have done something like that recently in -procnsreg- (downloadable
from ssc), and I ended up doing the maximization in a -while- loop. I
gave a brief discussion of that at the last UK Stata Users Group
Meeting, and you can look inside the code of -propcnsreg- for an

Hope this helps,

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

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