[R] pca with missing values

Prof Brian Ripley ripley at stats.ox.ac.uk
Wed Jun 30 14:11:33 CEST 2004

On Wed, 30 Jun 2004, Angel Lopez wrote:

> I need to perform a principal components analysis on a matrix with 
> missing values.
> I've searched the R web site but didn't manage to find anything.


has a description of an na.action argument, and 

    help.search("missing values")

comes up with several relevant entries.

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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