Re: [R] [ADMB Users] an alternative to R for nonlinear stat models

(as vulnerability coefficients can be in many models with such a feature). It is a limitation of the finite difference method for computing the hessian based on optimal parameter estimates. Chris - Chris Gast cmg...@gmail.com On Wed, Jun 16, 2010 at 11:05 PM, Rubén Roa r

Re: [R] [ADMB Users] an alternative to R for nonlinear stat models

As an additional note, the parscale argument can be useful to improve stability in convergence results in optim(). Chris - Chris Gast cmg...@gmail.com On Thu, Jun 17, 2010 at 1:32 PM, Chris Gast cmg...@gmail.com wrote: I spoke with my colleague who did most

Re: [R] [ADMB Users] an alternative to R for nonlinear stat models

for speed. Chris - Chris Gast University of Washington Quantitative Ecology and Resource Management cmg...@gmail.com On Wed, Jun 16, 2010 at 11:39 AM, Arni Magnusson arn...@hafro.is wrote: As far as I can tell, Gove et al. (2002) might be a good example