Ternary plots

["Coetzer, Roelof (RLJ)" <roelof.coetzer@sasol.com>]

Does anyone have a program or know where I can find a program for plotting contour lines on a ternary plot.  For example, in mixture experimental designs we usually present the response surface contours of the dependent variable on a ternary plot.  In other words, we construct the ternary plot to evaluate the effects of three components in a mixture on the dependent variable.  I want to generate the same type of ternary plots that the Design-Expert (Stat-Ease, Inc.) software generates for mixture experimental designs.

 

Thank you

Roelof Coetzer
Statistical Consultant
Sasol Technology R&D Division
Sasolburg
South Africa
Tel: +27 16 9603888
Fax: +27 11 5223425
E-mail: roelof.coetzer@sasol.com

 

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