[R] piper diagram

[Bert Gunter]

ternaryplot() in the vcd package might help.


-- Bert Gunter
Genentech Nonclinical Statistics 

-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On
Behalf Of Dylan Beaudette
Sent: Monday, June 09, 2008 1:36 PM
To: R-help at r-project.org
Subject: [R] piper diagram

Hi,

Is anyone on the list familiar with an R implementation of Piper Diagrams?

Example:
http://faculty.uml.edu/nelson_eby/89.315/IMAGES/Figure%209-78.jpg

I am thinking that two calls to triax.plot (plotrix) along with some kind of

affine-transformed standard plot would do the trick. Not so sure about the 
final layout, or a nice generalized version for something like lattice.

Cheers,

Dylan

-- 
Dylan Beaudette
Soil Resource Laboratory
http://casoilresource.lawr.ucdavis.edu/
University of California at Davis
530.754.7341

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