> 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.