Test set not encoded in classify_example.py

[bit-scientist]

Hi, @AndyMc629, thanks for the book.

I am not sure if it's intentional, but I wanted to raise a small, yet important point in the ingest_and_prep_data function of classify_example.py, Chapter01/classification. I believe X_test should also be transformed identically to X_train.

I understand this example is meant to be illustrative, and training works fine. But evaluating the model on X_test will fail with ValueError: could not convert string to float: 'entrepreneur', because the test set never undergoes one-hot encoding.

I think, readers must be provided a more clearer example than this.

[AndyMc629]

Hi, thanks for highlighting I will look at fixing asap! All these errata help make the content more useful so thank you.