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Draw / rotate line in plots

JonesFoxJonesFox Member Posts: 5 Newbie
I want to evaluate the performance of my model by plotting the measured output variable on the X-axis and the prediction of the output variable on the Y-Axis. That, I can do with the normal scatter plot option. Additionally, I want a line (Ursprungsgerade) in an 45° angle to help me judge visually how far the predictions are from the optimal line. 
Here is a example how I did that using matplotlib.

How can I do that in RapidMiner? I only find the option to draw horizontal or vertical lines. In the following picture I drew a vertical line, but I want to rotate it..

Best Answers

  • mschmitzmschmitz Administrator, Moderator, Employee, RapidMiner Certified Analyst, RapidMiner Certified Expert, University Professor Posts: 3,128  RM Data Scientist
    Solution Accepted
    Hi,
    I usually just add a line chart with mechanical_strength vs mechanical_strength, this is the straight line through the origin you search for.
    Best,
    Martin
    - Head of Data Science Services at RapidMiner -
    Dortmund, Germany
    JonesFox
  • JonesFoxJonesFox Member Posts: 5 Newbie
    Solution Accepted
    Yes, thanks! That's a nice workaround I didn't think of. 
    mschmitz
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