[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
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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