Thanks for the link, very interesting book. Yet, I couldn't find the part about EDMA. It would have surprised me anyway, as the input of multidimensional scaling is one matrix with euclidean distances between your observations, whereas in EDMA the data consist of a number of distance matrices.
Quite a different thing if you ask me. Neither cmdscale nor isoMDS or its derivated functions (eg metaMDS in the vegan package) are going to be of any help. Now I come to think of it, vegan has a procrustes function, but I'm not sure if it is generalized to be of use in EDMA. Cheers Joris On Fri, Jun 25, 2010 at 7:42 PM, Kjetil Halvorsen <kjetilbrinchmannhalvor...@gmail.com> wrote: > There is a freely downloadable and very relevant (& readable) book at > https://ccrma.stanford.edu/~dattorro/mybook.html > "Convex Optimization and Euclidean Distance geometry", and it indeed names > EDMA > as a form of multidimensional scaling (or maybe in the oposite way). > You should have a look > at the codes for multidimensional scaling in R. > > Kjetil > > On Fri, Jun 25, 2010 at 6:25 AM, gokhanocakoglu <ocako...@uludag.edu.tr> > wrote: >> >> thanks for your interests Joris >> >> >> >> Gokhan OCAKOGLU >> Uludag University >> Faculty of Medicine >> Department of Biostatistics >> http://www20.uludag.edu.tr/~biostat/ocakoglui.htm >> >> -- >> View this message in context: >> http://r.789695.n4.nabble.com/Euclidean-Distance-Matrix-Analysis-EDMA-in-R-tp2266797p2268257.html >> Sent from the R help mailing list archive at Nabble.com. >> >> ______________________________________________ >> R-help@r-project.org mailing list >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. >> > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > -- Joris Meys Statistical consultant Ghent University Faculty of Bioscience Engineering Department of Applied mathematics, biometrics and process control tel : +32 9 264 59 87 joris.m...@ugent.be ------------------------------- Disclaimer : http://helpdesk.ugent.be/e-maildisclaimer.php ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.