R help - Aug 2007 - lda and maximum likelihood

Dear all,

I am trying to compare several methods for classify data into groups. 
In that purpose I 'd like to developp model comparison and selection 
using AIC.

In the lda function of the MASS library, the maximum likelihood of the 
function is not given in the output and the script is not available.

Do anyone know how to extract or compute the maximum likelihood used in 
the lda function?

Thanks for your idea,

Am?lie Vaniscotte

On Mon, 6 Aug 2007, avanisco at univ-fcomte.fr wrote:
> I am trying to compare several methods for classify data into groups.
> In that purpose I 'd like to developp model comparison and selection
> using AIC.
>
> In the lda function of the MASS library, the maximum likelihood of the
> function is not given in the output and the script is not available.
The source _is_ available: it is part of the R tarball, and in the VR 
bundle on CRAN.
> Do anyone know how to extract or compute the maximum likelihood used in
> the lda function?
It does not maximize a likelihood: what it does do is described in the 
book for which this is support software.

-- 
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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Oxford OX1 3TG, UK                Fax:  +44 1865 272595