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JMP 10 Basic Analysis and Graphing, Second Edition by SAS Institute

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Chapter 21 
Creating Ternary Plots
Using the Ternary Plot Platform
The Ternary Plot command in the Graph menu produces a three-axis plot.
Ternary plots are a way of displaying the distribution and variability of three-part compositional data. (For example, the proportion of sand, silt, and clay in soil or the proportion of three chemical agents in a trial drug.) You can use data expressed in proportions or use absolute measures.
The ternary display is a triangle with sides scaled from 0 to 1. Each side represents one of the three components. A point is plotted so that a line drawn perpendicular from the point to each leg of the triangle intersect at the component values of the point.
Figure 21.1 Examples of Ternary Plots

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