[R] Disriminant analysis with lda (MASS)

Adaikalavan Ramasamy ramasamy at cancer.org.uk
Thu Jul 22 14:01:05 CEST 2004

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

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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