Decision trees are a simple but powerful prediction method. Figure 1: A classification decision ... if this varies among classes. For example, in classifying cancer cases it may be more costly ...

Decision trees are ... for binary classification or multi-class classification. A multi-class classification problem is one where the goal is to predict the value of a variable where there are three ...

For example, you might want to predict the sex of a person (male or female) based on their age, state where they live, income and political leaning. There are many other techniques for binary ...