[ADMB Users] Random effects failure in the inner optimization

dave fournier davef at otter-rsch.com
Tue Apr 5 09:35:40 PDT 2011

I've been working with Anders  on better recovery when the Hessian
is not positive definite in random effects models. I have attached 
modified code
with a simple example which fails with the current code and succeeds with
these patched versions.  It certainly won't handle all difficult models, but
it is a start in this direction.

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