Ternary diagrams

This visualization method is particularly useful in domains where one works with three elements with varying proportions, for example in chemistry or petrology.

This tool lets you quickly create a ternary diagram representing points and the projection lines connecting each point to each axis.

There are two approaches for ternary graphs:

  • Either segments corresponding to the orthogonal projection of the points on the axes give the information on the relative proportions of the three elements. 
  • Or the projection parallel to the axis A onto the axis B corresponds to the coordinate of the point along the axis B, where B is after A when turning counterclockwise. 

XLSTAT currently allows only the second approach.


This analysis is available in the XLStat-Basic addin for Microsoft Excel

About KCS

Kovach Computing Services (KCS) was founded in 1993 by Dr. Warren Kovach. The company specializes in the development and marketing of inexpensive and easy-to-use statistical software for scientists, as well as in data analysis consulting.

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