Fundamentals of Predictive Analytics with JMP, Second Edition

Chapter 10: Decision Trees

Introduction

Benefits and Drawbacks

Definitions and an Example

Theoretical Questions

Classification Trees

Begin Tree and Observe Results

Use JMP to Choose the Split That Maximizes the LogWorth Statistic

Split the Root Node According to Rank of Variables

Split Second Node According to the College Variable

Examine Results and Predict the Variable for a Third Split

Examine Results and Predict the Variable for a Fourth Split

Examine Results and Continue Splitting to Gain Actionable Insights

Prune to Simplify Overgrown Trees

Examine Receiver Operator Characteristic and Lift Curves

Regression Trees

Understand How Regression Trees Work

Restart a Regression Driven by Practical Questions

Use Column Contributions and Leaf Reports ...