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Mastering Tableau 2026

Mastering Tableau 2026 - Fifth Edition

By : Marleen Meier
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Mastering Tableau 2026

Mastering Tableau 2026

By: Marleen Meier

Overview of this book

Master the full capabilities of Tableau to design, build, and scale modern data visualization and business intelligence solutions. This book takes you beyond the basics to help you create advanced Tableau dashboards, perform efficient data preparation with Tableau Prep Builder, and deliver impactful analytics across your organization. Through practical examples, you’ll learn how to turn raw data into meaningful insights using proven Tableau data visualization techniques. As you progress, you’ll work with calculated fields and LOD expressions to build more flexible and powerful analyses. You’ll also explore performance optimization, deployment, and collaboration using Tableau Server, along with best practices for data governance and security in enterprise environments. In addition, the book covers AI-powered Tableau features that enhance analysis and accelerate insight discovery. You’ll apply advanced techniques such as time series analysis, geospatial analytics, and data modeling, and extend Tableau’s capabilities through Python and R integration for more sophisticated analytics workflows. By the end of this book, you’ll be equipped to build scalable, high-performance Tableau analytics solutions, enabling you to solve complex business problems with confidence.
Table of Contents (19 chapters)
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15
Chapter 15: The Intelligent Era of Tableau AI, Pulse, and Next
18
Index

Surveying data

Tableau can be a very effective tool for simply surveying data. Sometimes in the survey process, you may discover ways to clean the data or populate incomplete data based on existing fields. Sometimes, regretfully, there are simply not enough pieces of the puzzle to put together an entire dataset. In such cases, Tableau can be useful to communicate exactly what the gaps are, and this, in turn, may incentivize the organization to more fully populate the underlying data.

In this exercise, we will explore how to use Tableau to quickly discover the percentage of null values for each field in a dataset. Next, we'll explore how the data might be extrapolated from existing fields to fill in the gaps.

Establishing null values

All of you must have encountered this, you are looking at a dataset and see that some values are missing. Or you might see the word "null". But what do you do now? Let's explore some options.

The following are the steps for surveying the...

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