Data Science: Visual Programming with Orange Tool

  • Training data for building a model
  • Validation data for testing which parameters and which model to use
  • Test data for estimating the accuracy of the model
  1. Drag the Data Sampler widget to the canvas.
  2. At the right side of the File widget, there is a semi-circular shape. Mouse down on it and drag it to the Data Info widget.
  3. Notice that there is a link between both widgets with the word data on top.

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