Creating a ternary diagram in XLSTAT

Dataset for Ternary diagrams XLS69.5 KB

Tutorial video

  • Pro Core statistical software

  • System configuration

    • Windows:
      • Versions: 9x/Me/NT/2000/XP/Vista/Win 7
      • Excel: 97 and later
      • Processor: 32 or 64 bits
      • Hard disk: 150 Mb
    • Mac OS X:
      • OS: OS X
      • Excel: X, 2004 and 2011
      • Hard disk: 150Mb.

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Dataset to create a ternary diagram

An Excel sheet with both the data and the results can be downloaded by clicking here.

The data used in this tutorial correspond to 3 chemical components and the yield obtained for a fourth component that is being tested.

A ternary diagram represents within a triangle a set of points that have their coordinates in a three-dimensional space, with the constraint that the sum of the coordinates is constant.

Setting up a ternary diagram

Once XLSTAT-Pro is activated, select the XLSTAT / Visualizing data / Ternary diagrams command (see below), or click on the corresponding button of the Visualizing Data toolbar.

Ternary diagram: Menu

Once you have clicked on the button, the dialog box appears.

Ternary diagram: Dialog box - General

Select the data on the Excel sheet. The third column does not need to be entered as the values are known from the 2 other dimensions and the value of the constant sum that is entered in the Options tab. As object labels we select the yields so that they are displayed on the ternary plot

Ternary diagram: Dialog box - Options

The Charts tab allows defining a triangle within the ternary plot where we want to make the focus on. Here we left the default with all minimum values set to 0 and all maximum values set to 1. The number of segments determines how many tick marks and values are displayed along the axes. We decide to display both the projection lines and the lines between the axes.

Ternary diagram: Dialog box - Charts

 

Interpreting a ternary diagram

Then, after you have clicked on the OK button, the ternary diagram is displayed on a new Excel sheet (because the Sheet option has been selected for outputs).

Ternary diagram

It allows to see how the points cover the space and potential zones that should be explored during the next experiments.