[R-sig-eco] Plotting ternary diagrams

[Sarah Goslee]

ternaryplot in package vcd will do it.

See also
http://tolstoy.newcastle.edu.au/R/help/05/05/5421.html
and the rest of the thread.

Sarah

On Thu, Jun 19, 2008 at 11:56 AM, Phil Novack-Gottshall
<pnovackg at westga.edu> wrote:
> Hi all,
>
> Can anyone point me to a function for plotting a ternary diagram (a
> triangular plot; typically, each axis ranges 0-100% with cumulative value
> for each point adding to 100% along all three axes)?  It's frequently used
> by geologists to plot sedimentological or mineralogical composition, and I
> think I've seen it used in biome mapping (temperature/elevation/moisture).
>
> A bit further afield, do any functions exist to extend this to 4 axes, as a
> pyramidal quarternary diagram?
>
> Thanks for any advice,
> Phil
>

-- 
Sarah Goslee
http://www.functionaldiversity.org