Tuva Tools — Changelog

In this release, we bring you an exciting new addition to the tool which helps you understand the meaning of the Least Squares Line and allows you to judge the fit of a line more precisely.

Added:

• Show Squares for Fitted Lines: The Show Squares feature is the big addition in this release that allows you to judge the fit of a line using the least-squares method. You can access the feature from the Model Data menu in the toolbar.
  
  
  
  If you create a scatterplot with a fitted line and choose Show Squares, the Tuva tool constructs vertical segments from every point to the line and then uses those segments to make squares (squared residuals).
  
  
  
  You can also see the sum of the areas of those squares in the tool tip and the Summary View.
  
  
  
  If you choose to put multiple lines on the graph, you can choose the line for which you want the squared residuals displayed by selecting it on the graph or in the Summary view.