The purpose of this article is to explain how to set up the RAI Ternary Chart.



What is RAI Ternary Chart Visualization?

The Ternary chart is an alternative to the 3D Scatter Plot. It allows the user to look at the relationship between three parameters in a triangle shaped graph. The sides of a triangle will hold the measures for each column involved in the visualization, and we can add more dimension by using Color by, Shape by, and Size by options

Interpretation

The relationships will be determined by looking at the patterns of the graph. Things to look for: 

  • An accumulation of points on certain corners
  • Trends going from one edge to another on the triangle 
  • Trends in colors, shapes, and size

Purpose: Ternary Chart is used to plot three dependent of variables that always add up to a fixed value.

Steps to run: 

  1. Click the Ternary Chart icon on the toolbar

      Another way to access the visualization
    1. Click "Insert" on the top menu bar.
    2. Go to "Visualization".
    3. Click "Ternary Chart".


  2. Click on the Properties menu on the top right corner of the Ternary Char visualization, and select each of the parameters


    Properties Menu Inputs

    1. General
      • Title - Title across the visualization 
    2. Data
      • Data Table - Choose the data table for this analysis
      • Filtering - Choose a Filtering Scheme
      • Marking - Choose to turn on Marking on the Ternary Chart Visualization
      • Limit by Marking - Choose to Limit by marking, This the visualization will only populate when marking.
    3. Column Selection
      • Axis A - Choose the column selector for the bottom left axis.
      • Axis B - Choose the column selector for the bottom right axis
      • Axis C - Choose the column selector for the top axis
      • Column Color By - Choose a column selector to color by
        Color by: This will choose a unique color for each category in the column selected.  
      • Column Size By - Choose a column selector to size by
        Size by: This will size the shape (circle) accordingly to the dataset.  
    4. Selection
      • Selection Mode - Choose which type of mode for selection
        Rectangle: highlight multiple points on the Ternary Chart (able to use in other visualizations inside Spotfire)

        Point: In this point mode, this setting does not select but gives some details on that axis values in the Ternary Chart.  
    5. Appearance
      • Legend - Shows or Hide the Legend on the right panel 
      • Tooltips - Shows or Hide the Tooltips 
      • Show Min/ Max Vals - Shows or Hide each min and max Values of each axis.
    6. Advanced
      • Size Min - Sets the minimum values size of shape (circle)
      • Size Max - Sets the Maximum values size of the Shape (circle)
    7. Custom Min/Max Vals
      Set a custom Min and Max value for each of the axis (A, B, C). 
      • Axis A min 
      • Axis A max 
      • Axis B min 
      • Axis B max
      • Axis C min 
      • Axis C max
  3. Click "Save" after configuring all the properties menu.

Output Example: This image was taken from "Ternary Plot Example" template from the Exchange.ai Portal 

How to filter a subset of data:

  1. Open the filter panel by clicking the filter icon on the top bar.
  2. Choose the correct filtering scheme.
    • This will automatically filter the visualization upon selection. 



How do I mark on the Ternary Chart Visualization

To mark on the Ternary Chart, the settings menu under selection mode must be on the rectangle mode

  • This will draw a rectangle box when selecting on the Ternary Chart. 
  • To know if this activated there will be a (+) when hovering over the visualization.

Template Example from Exchange.ai Portal:

Ternary Plot Example

For additional information on RAI Ternary Chart, click here.