Fit, Predict, Score
The full routine: split the data, fit on the training part, predict on the test part, then score. For a regression model score returns R squared: 1.0 is a perfect fit and 0 is no better than always guessing the average.
Examplepython
Quick check
A score (R squared) of 1.0 means...
Your turn: write the code
Fit the model on the training data and print the test score rounded to 3 decimals.
Finish the quick check (and any code exercise) to complete this lesson, or mark it done yourself.
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