Feature Importance
Explore how to evaluate the importance of dataset features in predicting outcomes using XGBoost. Learn to access the feature_importances_ property and create visualizations with matplotlib, including customizing importance metrics and display options.
We'll cover the following...
We'll cover the following...
Chapter Goals:
- Understand how to measure each dataset feature's importance in making model predictions
- Use the matplotlib pyplot API to save a feature importance plot to a file
A. Determining important features
Not every feature in a dataset is used equally for helping a boosted decision tree make predictions. Certain features are more important than others, and it is ...