Wartenberg, D., S. Ferson, and F. J. Rohlf. 1987. Putting Things in Order -
a Critique of Detrended Correspondence-Analysis. American Naturalist


That paper basically points out that the method (at least at that time) does
nothing but to hide the arch of the horseshoe.  It does not change the
ordering of points along the first axis - it just changes the scatter along
the second axis so one does not see the arch.




F. James Rohlf, Distinguished Professor

Dept. Ecology and Evolution, Stony Brook University, NY 11794-5245


From: Classification, clustering, and phylogeny estimation
[mailto:[log in to unmask]] On Behalf Of Shannon, William
Sent: Thursday, March 25, 2010 10:49 AM
To: [log in to unmask]
Subject: Question for the list


What can people tell us about Detrended Correspondence Analysis


Thank you


Bill Shannon, PhD

Associate Prof. of Biostatistics in Medicine

Washington University School of Medicine

660 South Euclid Ave, Box 8005

St. Louis, MO 63110


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