Basic Filter Based Feature Selection Methods

• Remove Constant Features

  1. Remove Constant Features Using Variance Threshold
  2. Remove Constant Features Using Standard Deviation
  3. Remove Constant Features Using Categorical Variables

• Remove Quasi-Constant Features

• Remove Duplicated Features

• Using the Feature Engine

  1. Remove Constant Features Using Feature Engine
  2. Remove Quasi-Constant Features Using Feature Engine
  3. Remove Duplicated Features Using Feature Engine

• Stack Feature Selection in a Pipeline

  1. Using our own function
  2. Using the Feature Engine