Book Image

Learning Tableau 2020 - Fourth Edition

By : Joshua N. Milligan
Book Image

Learning Tableau 2020 - Fourth Edition

By: Joshua N. Milligan

Overview of this book

Learning Tableau strengthens your command on Tableau fundamentals and builds on advanced topics. The book starts by taking you through foundational principles of Tableau. We then demonstrate various types of connections and how to work with metadata. We teach you to use a wide variety of visualizations to analyze and communicate the data, and introduce you to calculations and parameters. We then take an in-depth look at level of detail (LOD) expressions and use them to solve complex data challenges. Up next, we show table calculations, how to extend and alter default visualizations, build an interactive dashboard, and master the art of telling stories with data. This Tableau book will introduce you to visual statistical analytics capabilities, create different types of visualizations and dynamic dashboards for rich user experiences. We then move on to maps and geospatial visualization, and the new Data Model capabilities introduced in Tableau 2020.2. You will further use Tableau Prep’s ability to clean and structure data and share the stories contained in your data. By the end of this book, you will be proficient in implementing the powerful features of Tableau 2020 for decision-making.
Table of Contents (19 chapters)
9
Visual Analytics – Trends, Clustering, Distributions, and Forecasting
17
Other Books You May Enjoy
18
Index

Leveraging Level of Detail Calculations

Having considered row-level and aggregate calculations, it's time to turn our attention to the third of the four main types of calculations: level of detail calculations.

Level of detail calculations (sometimes referred to as LOD calcs or LOD expressions) allow you to perform aggregations at a specified level of detail, which may be different from the level of detail that is defined in the view. You can leverage this capability to perform a wide variety of analyses that would otherwise be quite difficult.

In this chapter, we'll cover the following:

  • Overview of level of detail
  • Level of detail calculation syntax and variations
  • Examples of FIXED level of detail calculations
  • Examples of INCLUDE level of detail calculations
  • Examples of EXCLUDE level of detail calculations