Book Image

Mastering Tableau 2023 - Fourth Edition

By : Marleen Meier
Book Image

Mastering Tableau 2023 - Fourth Edition

By: Marleen Meier

Overview of this book

This edition of the bestselling Tableau guide will teach you how to leverage Tableau's newest features and offerings in various paradigms of the BI domain. Updated with fresh topics, including the newest features in Tableau Server, Prep, and Desktop, as well as up-to-date examples, this book will take you from mastering essential Tableau concepts to advance functionalities. A chapter on data governance has also been added. Throughout this book, you'll learn how to use Tableau Hyper files and Prep Builder to easily perform data preparation and handling, as well as complex joins, spatial joins, unions, and data blending tasks using practical examples. You'll also get to grips with executing data densification and explore other expert-level examples to help you with calculations, mapping, and visual design using Tableau extensions. Later chapters will teach you all about improving dashboard performance, connecting to Tableau Server, and understanding data visualization with examples. Finally, you'll cover advanced use cases, such as self-service analysis, time series analysis, geo-spatial analysis, and how to connect Tableau to Python and R to implement programming functionalities within Tableau. By the end of this book, you'll have mastered Tableau 2023 and be able to tackle common and advanced challenges in the BI domain.
Table of Contents (19 chapters)
17
Other Books You May Enjoy
18
Index

Getting Your Data Ready

Have you ever asked yourself whether your data is clean enough to be analyzed? It’s likely that everyone who works with data has, which is why this chapter is dedicated to getting your data ready for analysis, otherwise known as data cleaning.

The first part of this chapter is theory-oriented and does not include exercises. A careful reading of this information is encouraged since it provides a foundation for greater insight. The latter portion of the chapter provides various exercises specifically focused on data preparation.

Now let’s dive into this fascinating topic with the goal of enriching our understanding and becoming ever-better data stewards.

In this chapter, we will discuss the following topics:

  • Understanding Hyper
  • Focusing on data preparation
  • Surveying data
  • Cleaning messy data

Since Tableau Desktop 10.5 has been on the market for some time, you may already have heard of Hyper. Regardless of whether you have or not, continue reading for a primer on this feature!