- Open "Orange".
- Drag and drop "File" widget and
double click to load a dataset (slump.txt).
- Drag and drop "Select Attributes"
widget and connect it to the "File" widget.
- Open "Select Attributes" and set the
class (comprehensive strength) and attributes (predictors).
- Drag and drop "Regression Tree" widget
and connect it to the "Select Attributes" widget.
- Drag and drop "Regression Tree Graph" widget
and connect it to the "Regression Tree" widget.
- Drag and drop "Test Learners" widget
and connect it to the "Regression Tree" and the "Select
Attributes" widget.
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