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29 lines
575 B
Ruby
Executable File
29 lines
575 B
Ruby
Executable File
#!/usr/bin/ruby
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require 'rubygems'
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require 'decisiontree'
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attributes = ['Temperature']
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training = [
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[36.6, 'healthy'],
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[37, 'sick'],
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[38, 'sick'],
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[36.7, 'healthy'],
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[40, 'sick'],
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[50, 'really sick'],
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]
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# Instantiate the tree, and train it based on the data (set default to '1')
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dec_tree = DecisionTree::ID3Tree.new(attributes, training, 'sick', :continuous)
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dec_tree.train
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test = [37, 'sick']
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decision = dec_tree.predict(test)
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puts "Predicted: #{decision} ... True decision: #{test.last}";
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# Graph the tree, save to 'tree.png'
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dec_tree.graph("tree")
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