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Evaluating Models

Understand how to evaluate machine learning models effectively by learning to use scikit-learn's predict function and key evaluation metrics such as classification accuracy, mean absolute error, mean squared error, and R squared. This lesson helps you assess model performance on test data for both regression and classification tasks.

Chapter Goals:

  • Learn how to evaluate regression and classification models

A. Making predictions

Each of the models we've worked with has a predict function, which is used to predict values for new data observations ...