3D package in R
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. Universit? du Qu?bec ? Montr?al 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 Envoy? : Saturday, January 06, 2001 10:05 AM ? : 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 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-. -.-.-.-.-.-.- r-help mailing list -- Read
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