TC

Chapter 15: rail_test is not used; models in the notebook not evaluated on the test set

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In the code for Chapter 15 of [handson-ml3](https://github.com/ageron/handson-ml3/tree/main) at https://github.com/ageron/handson-ml3/blob/main/15_processing_sequences_using_rnns_and_cnns.ipynb I see code that creates that train, validation, and test sets. rail_train = df["rail"]["2016-01":"2018-12"] / 1e6 rail_valid = df["rail"]["2019-01":"2019-05"] /...