[R] Summary: Multidimensional scaling

[John Miyamoto]

I sent a query to R-Help about the availability of nonmetric
multidimensional scaling (MDS) algorithms in R.  I would like to thank
Tony Rossini, Jonathan Baron, Sundar Dorai-Raj, and Brian Ripley for
helpful replies.  The gist of the replies is that isoMDS in the MASS
library provides Kruskal's method for nonmetric MDS, sammon in the MASS
library provides Sammon's nonlinear mapping method for nonmetric MDS, and
cmdscale in the mva library provides metric MDS.  A function xgvis in the
xgobi package was mentioned but I have not acquired this package as yet.
The pcurve package is mentioned in R-FAQ as an MDS procedure, but it is
not on the Windows contributed page.

Thank you,

John

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John Miyamoto, Dept. of Psychology, Box 351525
University of Washington, Seattle, WA 98195-1525
Phone 206-543-0805, Fax 206-685-3157, Email jmiyamot at u.washington.edu
Homepage http://faculty.washington.edu/jmiyamot/
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