The Data Science Lab. Binary Classification Using a scikit Decision Tree. Dr. James McCaffrey of Microsoft Research says decision trees are useful for relatively small datasets and when the trained ...

The Data Science Lab. Multi-Class Classification Using a scikit Decision Tree. Decision trees are useful for relatively small datasets that have a relatively simple underlying structure, and when the ...

Decision tree data mining techniques perform four important functions. ... Note 100% accuracy of classification in Fig. 4 for the training set was 94% accurate in the test set.

Decision trees are a simple but powerful prediction method. Figure 1: A classification decision tree is built by partitioning the predictor variable to reduce class mixing at each split. Figure 2 ...