R help - Jun 2003 - parameters calculated by lda and qda

Hi, 

I am not sure if I remember correctly a mail last week to this messageboard
where Prof Ripley said Fisher's discriminants are not used in lda within R
and that Rao's are used instead, is this true?  I looked in MASS (1996) but
I couldn't find the reference to this in chapter 12 (multivariate analysis),
the (help)lda doesn't tell me either.  Could anyone tell me where can I find
out this information as I am also interested in the method for qda?

Thanks

Anne

Power, Anne Marie wrote:
> Hi, 
> 
> I am not sure if I remember correctly a mail last week to this messageboard
> where Prof Ripley said Fisher's discriminants are not used in lda
within R
> and that Rao's are used instead, is this true?  I looked in MASS (1996)
but
> I couldn't find the reference to this in chapter 12 (multivariate
analysis),
Chapter 12 "Classification" in the 4th edition (2002) of MASS has a 
description and gives references.

> the (help)lda doesn't tell me either.  Could anyone tell me where can I
find
> out this information as I am also interested in the method for qda?
See the recent edition of MASS for qda() as well.

Uwe Ligges
> Thanks
> 
> Anne
> 
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