[R] Optimized Likelihoods
Prof Brian Ripley
ripley at stats.ox.ac.uk
Sat Sep 29 18:42:54 CEST 2001
On Sat, 29 Sep 2001, Calvin L. Williams, Ph.D. wrote:
> 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).
> ==================== 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)
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