[R] logistic regression or discriminant analysis ?

[Roger Peng]

I believe you can use stepAIC in the MASS library to do a stepwise
logistic regression.

As far as I know, the performance of lda typically depends critically on
the multivariate normality of the data.  Whether you get better results
with lda or logistic regression depends on your particular situation.

-roger
_______________________________
UCLA Department of Statistics
rpeng at stat.ucla.edu
http://www.stat.ucla.edu/~rpeng

On Thu, 23 May 2002, Daniel Amorèse wrote:

> Hello,
> Does logistic regression really provide better results than lda or qda ?
> (my purpose is not classification but highlighting of discriminant
> variables).
> If this is true, where could I get an R script performing stepwise logistic
> regression ?
> Thanks
> -- 
> Daniel AMORESE
> Lab. M2C "Morphodynamique Continentale et Côtière"
> UMR CNRS 6143 Caen/Rouen
> Centre de Géomorphologie
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> FRANCE
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