[R] Optimized Likelihoods

[Prof Brian Ripley]

On Sat, 29 Sep 2001, Calvin L. Williams, Ph.D. wrote:

> R-Users,
>
> I'm in the process of developing some notes on optimizing likelihoods
> for a class I'm teaching next term. Can anyone offer examples showing
> the optimization of a complex likelihood function that they wouldn't
> mind sharing using optim(). I've adapted some of the S-plus likelihood
> examplesfrom the ``Guide to Statistics" and  the Zip example from ``Statistical
> Models in S". Any additional examples that people wouldn't mind sharing
> would be greatly appreciated.

Here are several public ones:

fitdistr in the latest version of MASS.
polr in MASS
The examples in MASS/scripts/ch08.R (quite a few).




>
> Cheers,
> Calvin
>
> --
> ====================  Calvin L. Williams, Ph.D.  ====================
>       Department of Mathematical Sciences, Clemson University
>                              Box 340975 ,   0-323 Martin Hall
>                        Clemson, South Carolina 29634-0975
>        VOICE: (864) 656-5241  or leave message (864) 654-7187
>                   EMAIL: calvinw at ces.clemson.edu
>                                 FAX: 1-(864) 656-5230
>          WWW:   http://www.ces.clemson.edu/~calvinw/
> ============================================================
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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 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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