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
parameters calculated by lda and qda
2 messages · Power, Anne Marie, Uwe Ligges
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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