[R] 3D package in R

[Yves Gauvreau]

Hi,

I would agree with Jonathan Baron if Xgobi wasn't such a fuss to use under
Windows. For all practical purposes it's not very useful at least under
Windows. I think a 3D visualization package for R is a very good idea as
long as it can be used like any other package on all supported platforms. I
went to have a look at Blender and I think I understand your idea. If I can
humbly suggest using an existing and portable library in a manner similar to
how the core developers have used say Linpack or other similar libraries. A
common denominator could be OpenGL as it is available for most platform
AFAIK.

Regards.

Yves Gauvreau
B.E.F.P. Université du Québec à Montréal
cyg at sympatico.ca

> -----Message d'origine-----
> De : owner-r-help at stat.math.ethz.ch
> [mailto:owner-r-help at stat.math.ethz.ch]De la part de Jonathan Baron
> Envoyé : Saturday, January 06, 2001 10:05 AM
> À : E97249 at edu.essec.fr; r-help at stat.math.ethz.ch
> Objet : Re: [R] 3D package in R
>
>
> Before starting to write this, you might want to look at
> http://www.research.att.com/areas/stat/xgobi/
>
> 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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