Machine Learning, Decision Tree, Explainable Ai, Beginners Guide, Understanding.
first node At the root node all the data points are mixed. Using the result above Gini impurity is : This gives us : We can verify this number by checking the Gini information on the root node : ‘gini = 0.664’. For the first node we have a Gini impurity of 0.664. Let’s get back to the first