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Python Feature Engineering Cookbook

Python Feature Engineering Cookbook

By : Galli
3.6 (9)
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Python Feature Engineering Cookbook

Python Feature Engineering Cookbook

3.6 (9)
By: Galli

Overview of this book

Feature engineering is invaluable for developing and enriching your machine learning models. In this cookbook, you will work with the best tools to streamline your feature engineering pipelines and techniques and simplify and improve the quality of your code. Using Python libraries such as pandas, scikit-learn, Featuretools, and Feature-engine, you’ll learn how to work with both continuous and discrete datasets and be able to transform features from unstructured datasets. You will develop the skills necessary to select the best features as well as the most suitable extraction techniques. This book will cover Python recipes that will help you automate feature engineering to simplify complex processes. You’ll also get to grips with different feature engineering strategies, such as the box-cox transform, power transform, and log transform across machine learning, reinforcement learning, and natural language processing (NLP) domains. By the end of this book, you’ll have discovered tips and practical solutions to all of your feature engineering problems.
Table of Contents (13 chapters)
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Implementing maximum absolute scaling

Maximum absolute scaling scales the data to its maximum value; that is, it divides every observation by the maximum value of the variable:

The result of the preceding transformation is a distribution in which the values vary approximately within the range of -1 to 1. In this recipe, we will implement maximum absolute scaling with scikit-learn.

Scikit-learn recommends using this transformer on data that is centered at zero or on sparse data.

How to do it...

Let's begin by importing the required packages, loading the dataset, and preparing the train and test sets:

  1. Import pandas and the required scikit-learn classes and function:
import pandas as pd
from sklearn.datasets import load_boston...

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