**MISSION 89**

# Introduction to Decision Trees

Learn about the building blocks of decision trees, including entropy and information gain.

#### Objectives

#### Mission Outline

1. Introduction

2. Overview of the Data Set

3. Converting Categorical Variables

4. Splitting Data

5. Creating Splits

6. Decision Trees as Flows of Data

7. Splitting Data to Make Predictions

8. Overview of Data Set Entropy

9. Overview of Data Set Entropy

10. Information Gain

11. Information Gain

12. Finding the Best Split

13. Build the Whole Tree

14. Next Steps

15. Takeaways