Book Image

The Pandas Workshop

By : Blaine Bateman, Saikat Basak, Thomas V. Joseph, William So
5 (1)
Book Image

The Pandas Workshop

5 (1)
By: Blaine Bateman, Saikat Basak, Thomas V. Joseph, William So

Overview of this book

The Pandas Workshop will teach you how to be more productive with data and generate real business insights to inform your decision-making. You will be guided through real-world data science problems and shown how to apply key techniques in the context of realistic examples and exercises. Engaging activities will then challenge you to apply your new skills in a way that prepares you for real data science projects. You’ll see how experienced data scientists tackle a wide range of problems using data analysis with pandas. Unlike other Python books, which focus on theory and spend too long on dry, technical explanations, this workshop is designed to quickly get you to write clean code and build your understanding through hands-on practice. As you work through this Python pandas book, you’ll tackle various real-world scenarios, such as using an air quality dataset to understand the pattern of nitrogen dioxide emissions in a city, as well as analyzing transportation data to improve bus transportation services. By the end of this data analytics book, you’ll have the knowledge, skills, and confidence you need to solve your own challenging data science problems with pandas.
Table of Contents (21 chapters)
1
Part 1 – Introduction to pandas
6
Part 2 – Working with Data
11
Part 3 – Data Modeling
15
Part 4 – Additional Use Cases for pandas

Chapter 5: Data Selection – DataFrames

In this chapter, you will develop an understanding of the different forms of the pandas index, and how the index is involved in slicing, which is one way to get a subset of a pandas data structure. You will learn how to manipulate the index itself, as well as the different notations pandas provides for selection.

By the end of this chapter, you will be able to select subsets of data and work with the index efficiently. You will also learn how to implement pandas dot, bracket, .loc(), and .iloc() notations to slice and index.

This chapter covers the following topics:

  • Introduction to DataFrames
  • Data selection in pandas DataFrames
  • Activity 5.01 – Creating a multi-index from columns
  • Bracket and dot notation
  • Changing DataFrame values using bracket and dot notation