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st: backed-up


From   "Alfonso Miranda Caso Luengo" <Alfonso.Miranda-Caso-Luengo@warwick.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: backed-up
Date   Sat, 19 Jul 2003 13:23:20 +0100

Dear All,

I am running a ml routine. The likelihood estimation program looks ok, and ml check suggests that there is no error. Once I intent ml maximize the program iterates for a while in a concave zone. Then I get the backed-up message. At the end convergence is declared in a backed-up iteration. I understand that this is of great concern. What does this mean? What can I do to fix the problem?  

Many thanks,

Alfonso.


===========================================
Alfonso Miranda
PhD Student

Economics Department
University of Warwick
Coventry CV4 7AL
E-mail: Alfonso.Miranda-Caso-Luengo@warwick.ac.uk
===========================================

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