3.3 Setting up the validation framework

Notes

Splitting the dataset with Scikit-Learn.

Classes, functions, and methods:

train_test_split - Scikit-Learn class for splitting a dataset into two parts. The test_size argument states how large the test set should be. The random_state argument sets a random seed for reproducibility purposes.
df.reset_index(drop=True) - reset the indices of a dataframe and delete the previous ones.
df.x.values - extract the values from x series
del df['x'] - delete x series from a dataframe

The entire code of this project is available in this jupyter notebook.

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