[R] Re: Optimizing a nonlinear function

Prof Brian Ripley ripley at stats.ox.ac.uk
Sat Jul 31 10:04:05 CEST 2004

Please red the R FAQ, and what it says about not sending questions to 

On Fri, 30 Jul 2004 stephen at iwi201.iwinet.rug.nl wrote:

> Hi Prof. Ripley,
> I have a nonlinear function to optimize. Please find the details on the
> attached
> word document. I thought it would be clearer if I gave the formulae typed in
> math format.
> My Question: Is there any nonlinear optimizer in R that can handle this sort of
> problem. Since I have many parameters, is there an optimizer that chooses
> starting values by itself, without having to give them by myself?
> I am on R-help mailing list but currently using a default e-mail address so I
> was not sure whether my mail could go through. So i decided to send you my
> question directly. I could do with a reply through R-help.
> Thanks for your help.
> ----------------------------------------------------------------
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Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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