[R] various ordinations

Michael Camann camann at babylon.cnrs.humboldt.edu
Wed Aug 23 08:20:26 CEST 2000

> 1c) As you write `CCA', I guess you mean actually canonical *correspondence* 
> analysis: Nothing like that is available in R, whereas canonical correlation 
> analysis is in `cancor' (package `mva'). This `cancor' is a bit like RDA in 
> vegetation ecology jargon, but I am afraid it regards most vegetation data 
> sets as ill defined.

You're correct, of course-- even after harping at students about this I
STILL write correlation more often than not.  I don't actually use CCA or
DCA very often, but they should be included in the library for
completeness.  Likewise TWINSPAN, although I personally prefer indicator
species analyses ala Dufrene and Legendre.

Thanks for your comments, which were helpful, knowledgable, and gracious.

Mike C.

Michael A. Camann                                  Voice: 707-826-3676
Assistant Professor of Zoology                       Fax: 707-826-3201
Institute for Forest Canopy Research     Email: mac24 at axe.humboldt.edu
Department of Biology                            ifcr at axe.humboldt.edu
Humboldt State University           
Arcata, CA 95521


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