Feature Scaling

What is Feature Scaling?

Feature Scaling is an important pre-processing step for some machine learning algorithms.

Imagine you have three friends of whom you know the individual weight and height.

You would like to deduce Christian’s  t-shirt size from David’s and Julia’s by looking at the height and weight.

Name Height in m Weight in kg T-Shirt size
Julia 1.58 52 Small
David 1.79 79 Large
Christian 1.86 64 ?

One way You could determine the shirt size is to just add up the weight and the height of each friend. You would get: Continue reading “Feature Scaling”