Optional Lab: Feature scaling and learning rate. Z-score normalization

From what I understand, the range of #Bedrooms, #Floors and maybe Age looks acceptable. While size is different order of magnitude greater so it needs to be rescaled.

But in the lab all features are rescaled.


Maybe if I want to scale a feature I need to scale all?

Thank you all

Hello @KiraDiShira,

We don’t have to scale all when we want to scale one feature, but i would always suggest to scale all since the key is to make sure all features having similar scales and scaling all features does exactly that.


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