[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
> 
> ______________________________________________
> R-help at 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
>




More information about the R-help mailing list