On 07/12/2009 11:12 PM, Graham Neubig wrote:
Hello,
I have just started using R, and have found it quite easy to make
plots of probability densities for normal and beta distributions, etc.
Now, I'm looking at trying to make a simplex plot of a Dirichlet
density, but have gotten stuck and was hoping that someone could help.
Ideally, the plot would look something like the 3d plots on Wikipedia here:
http://en.wikipedia.org/wiki/File:Dirichlet_distributions.png
Although if these are impossible, a color-coded 2d simplex would work as well.
Does anyone have an idea or link about how to make simplex plots?
RSiteSearch("simplex") turns up some simplex plots in the klaR package;
I don't know if they're the sort you want.
Duncan Murdoch
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