Book Image

Hands-On Data Preprocessing in Python

By : Roy Jafari
5 (2)
Book Image

Hands-On Data Preprocessing in Python

5 (2)
By: Roy Jafari

Overview of this book

Hands-On Data Preprocessing is a primer on the best data cleaning and preprocessing techniques, written by an expert who’s developed college-level courses on data preprocessing and related subjects. With this book, you’ll be equipped with the optimum data preprocessing techniques from multiple perspectives, ensuring that you get the best possible insights from your data. You'll learn about different technical and analytical aspects of data preprocessing – data collection, data cleaning, data integration, data reduction, and data transformation – and get to grips with implementing them using the open source Python programming environment. The hands-on examples and easy-to-follow chapters will help you gain a comprehensive articulation of data preprocessing, its whys and hows, and identify opportunities where data analytics could lead to more effective decision making. As you progress through the chapters, you’ll also understand the role of data management systems and technologies for effective analytics and how to use APIs to pull data. By the end of this Python data preprocessing book, you'll be able to use Python to read, manipulate, and analyze data; perform data cleaning, integration, reduction, and transformation techniques, and handle outliers or missing values to effectively prepare data for analytic tools.
Table of Contents (24 chapters)
1
Part 1:Technical Needs
6
Part 2: Analytic Goals
11
Part 3: The Preprocessing
18
Part 4: Case Studies

Chapter 2: Review of Another Core Module – Matplotlib

Matplotlib is our go-to module for creating visualizations from data. Not only can this module draw many different plots, but it also gives us the capability to design and tailor the plots to our needs. Matplotlib will serve our data analytics and data preprocessing journey by providing a great number of functions for effective visualizations.

Before we start reviewing this valuable module, I would like to let you know that this chapter is not meant to be a comprehensive teaching guide for Matplotlib, but rather a collection of concepts, functions, and examples that will be invaluable as we cover data analytics and data preprocessing in future chapters.

We have actually started using this module in the previous chapter. The Pandas plot functions that we introduced in Chapter 1, Review of the Core Modules of NumPy and Pandas, under the Pandas functions to explore a DataFrame are section, actually Matplotlib visuals that...