Book Image

Learning Tableau 2022 - Fifth Edition

By : Joshua N. Milligan
Book Image

Learning Tableau 2022 - Fifth Edition

By: Joshua N. Milligan

Overview of this book

Learning Tableau 2022 helps you get started with Tableau and data visualization, but it does more than just cover the basic principles. It helps you understand how to analyze and communicate data visually, and articulate data stories using advanced features. This new edition is updated with Tableau’s latest features, such as dashboard extensions, Explain Data, and integration with CRM Analytics (Einstein Analytics), which will help you harness the full potential of artificial intelligence (AI) and predictive modeling in Tableau. After an exploration of the core principles, this book will teach you how to use table and level of detail calculations to extend and alter default visualizations, build interactive dashboards, and master the art of telling stories with data. You’ll learn about visual statistical analytics and create different types of static and animated visualizations and dashboards for rich user experiences. We then move on to interlinking different data sources with Tableau’s Data Model capabilities, along with maps and geospatial visualization. You will further use Tableau Prep Builder’s ability to efficiently clean and structure data. By the end of this book, you will be proficient in implementing the powerful features of Tableau 2022 to improve the business intelligence insights you can extract from your data.
Table of Contents (20 chapters)
18
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19
Index

Explanation of the sample data used in this chapter

For this chapter, we’ll use a sample dataset of patient visits to the hospital. The data itself is contained in the Excel file Hospital Visits.xlsx in the Learning Tableau\Chapter 14 directory. In this example, each tab of the Excel file represent tables of data. The principles described here are directly applicable to relational database tables, multiple files, or tables in any data source. The relationship between those tables is illustrated here:

Figure 14.1: The four tabs of the Excel file illustrated as four tables with relationships

Excel does not explicitly define the relationships, but they are shown here as they might exist in a relational database using foreign key lookups. Here is a brief explanation of the tables and their relationships:

  • Hospital Visit: This is the primary table that records the admission and diagnosis of a single patient on a single visit to the hospital. It contains attributes...