Re: [R] Disriminant analysis with lda (MASS)

From: Adaikalavan Ramasamy <ramasamy_at_cancer.org.uk>
Date: Thu 22 Jul 2004 - 22:01:05 EST

If memory serves, Fisher's Discriminant analysis produces the same results as lda for two groups although the assumption and derivations are different. Google search produces
http://www.statsoftinc.com/textbook/stdiscan.html

In the middle of page 347 of MASS 3 (sorry no latest copy here), it mentions how LDA is related to Fishers.

I believe Pattern Recognition and Neural Networks (1996) talks more about the equivalence of these two with two groups.

On Thu, 2004-07-22 at 10:39, Borut Rajer wrote:
> Hello,
>
> Does the "lda" function (package MASS) perform or can it perform classic
> two-group Fisher discriminant analysis?
>
> R-version: 1.9.1, MASS package (latest available)
>
> Thank you,
>
> Borut Rajer
>
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R-help@stat.math.ethz.ch mailing list
https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Thu Jul 22 22:10:14 2004

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