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

Summary

Congratulations on your learning in this chapter. This chapter covered data cleaning level III. Together, we learned how to detect and deal with missing values, outliers, and errors. This may sound like too short of a summary for such a long chapter, but as we saw, detection, diagnosis, and dealing with each of the three issues (missing values, outliers, and errors) can have many details and delicacies. Finishing this chapter was a significant achievement, and now you know how to detect, diagnose, and deal with all of these three possible issues you may encounter when working with a dataset.

This chapter concludes our three-chapter-long data cleaning journey. In the next chapter, we move to another important data preprocessing area, and that is data fusion and integration. Before moving on to the next chapter, spend some time working on the following exercises to solidify your learnings.