[R] 3D package in R

Jonathan Baron baron at cattell.psych.upenn.edu
Sat Jan 6 16:04:37 CET 2001

Before starting to write this, you might want to look at

There is also a contributed R package (in CRAN) which (it seems)
creates an interface between R and Xgobi.

What is apparently missing is an RPM file for for the latest
version of Xgobi.  (And I can't even find the rpm for the old
version anymore.)

I originally got it because I wanted to do "parallel coordinate
plots" (a feature of Systat, which I gave up when I gave up
Windows).  But then I discovered how to do them using matplot.* I
find these better for visualizing three (or four, or ...)
dimensional data than 3D plots, once you get used to them.

*If you have a matrix m1 with each column a variable and each row a
subject (say), then matplot(t(m1),type="l") will do it.

Jonathan Baron, Professor of Psychology, University of Pennsylvania
Home page: http://www.sas.upenn.edu/~jbaron

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