When I must make scaling on data?


i want to know when should make scaling on data


@AhmedAdel, I think you should go through this article once

Practical Guide on Data Preprocessing in Python using Scikit Learn https://www.analyticsvidhya.com/blog/2016/07/practical-guide-data-preprocessing-python-scikit-learn/

This will give you a practical overview of feature scaling and when do you use it.

Post back any follow up queries you may have here!