In this lecture we looked at how to normalize our datasets.
This has many applications but one of the main reasons you may want to normalize data is so that you can compare two differently scaled datasets.
Normalizing always rescales your values between 0 and 1.
However, there are times where you may want to adjust your data to some other range, like -1 and 1.
So we also look at how to modify the standard formula to allow for this rescaling.