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You're reading from Python Feature Engineering Cookbook Over 70 recipes for creating, engineering, and transforming features to build machine learning models

Product type Paperback

Published in Jan 2020

Publisher Packt

ISBN-13 9781789806311

Length 372 pages

Edition 1st Edition

Languages

Python

Tools

NumPy

Concepts

Machine Learning

Author (1):

Soledad Galli

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Table of Contents (13) Chapters

Preface

1. Foreseeing Variable Problems When Building ML Models

2. Imputing Missing Data FREE CHAPTER

3. Encoding Categorical Variables

4. Transforming Numerical Variables

5. Performing Variable Discretization

6. Working with Outliers

7. Deriving Features from Dates and Time Variables

8. Performing Feature Scaling

9. Applying Mathematical Computations to Features

10. Creating Features with Transactional and Time Series Data

11. Extracting Features from Text Variables

12. Other Books You May Enjoy

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Technical requirements

In this chapter, we will use the following Python libraries: pandas, NumPy, SciPy, and scikit-learn. I recommend installing the free Anaconda Python distribution (https://www.anaconda.com/distribution/), which contains all of these packages. For details on how to install the Python Anaconda distribution, visit the Technical requirements section in Chapter 1, Foreseeing Variable Problems in Building ML Models.

In this chapter, we will also use the open source Python library, Feature-engine, which I created and can be installed using pip:

pip install feature-engine

To find out more about Feature-engine, visit its documentation at https://feature-engine.readthedocs.io.

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Authors (1)

Galli

Soledad Galli is a bestselling data science instructor, author, and open-source Python developer. As the leading instructor at Train in Data, she teaches intermediate and advanced courses in machine learning that have enrolled over 64,000 students worldwide and continue to receive positive reviews. Sole is also the developer and maintainer of the Python open-source library Feature-engine, which provides an extensive array of methods for feature engineering and selection. With extensive experience as a data scientist in finance and insurance sectors, Sole has developed and deployed machine learning models for assessing insurance claims, evaluating credit risk, and preventing fraud. She is a frequent speaker at podcasts, meetups, and webinars, sharing her expertise with the broader data science community.

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