[R] Loading Distance matrices and PCA
Prof Brian Ripley
ripley at stats.ox.ac.uk
Thu Sep 11 18:33:12 CEST 2003
On Thu, 11 Sep 2003 diriano at rz.uni-potsdam.de wrote:
> I am really new into R, and I would like to know if it is possible to load a
> distance file matrix (lower-triangular) into R and then do a PCA or
> Multidimensional Scaling over that matrix.
No, yes, as PCA is not defined for a distance matrix but MDS is.
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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