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Subject: Re: Line search failing?
Date: Thu, 14 Aug 2008 22:04:01 +0000 (UTC)
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> Does anyone know what else to check to see why line search
> can't find a good point?
> 
> Thanks,
> 
> Dave

Singularity of the Hessian possibly. If the method the 
routine is using is Newton-like, it may be trying to 
compute the Hessian, or some approximation to it, and to 
invert it.

If the Hessian at the point is nearly singular, it will 
have problems, I'd imagine.