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 ...

For decision tree classification, the variable to predict is most often ordinal-encoded (0, 1, 2 and so on) The numeric predictors do not need to be normalized to all the same range -- typically 0.0 ...

The decision tree will then enable us to make our decision. Suppose, for example, that the parents haven't turned up and the sun is shining. Then this path through our decision tree will tell us what ...