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)
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Index

The four basic data transformations

In this section, we’ll give you an overview of some basic transformations that can fundamentally change the structure of your data. We’ll start with an overview and then look at some practical examples.

Overview of transformations

In Tableau (and Tableau Prep), there are four basic data transformations. The following definitions broadly apply to most databases and data transformation tools, but there are some details and terminology that are Tableau-specific:

  • Pivots: This indicates the transformation of columns to rows or rows to columns. The latter is possible in Tableau Prep only. The resulting dataset will be narrower and taller with fewer columns and more rows (columns to rows) or wider and shorter with more columns and fewer rows (rows to columns).
  • Unions: This indicates the appending of rows from one table of data to another, with the matching columns aligned together. The resulting data structure is...