We covered a lot of ground in this chapter, but we've only just scratched the surface in terms of how to build this type of model. Hopefully, you've gained a better understanding of the modeling process, from cleaning the data, to engineering the features, to testing. And hopefully, you'll use this information to extend the model on your own and improve upon it.

In the next chapter, we'll turn our attention to a very different domain, as we move from numeric data to text-based data.