Book Image

Tableau 10 Bootcamp

By : Joshua N . Milligan, Donabel Santos
Book Image

Tableau 10 Bootcamp

By: Joshua N . Milligan, Donabel Santos

Overview of this book

<p>Tableau is a leading visual analytics software that can uncover insights for better and smarter decision-making. Tableau has an uncanny ability to beautify your data, compared to other BI tools, which makes it an ideal choice for performing fast and easy visual analysis.</p> <p>A military camp style fast-paced learning book that builds your understanding of Tableau 10 in no time. This day based learning guide contains the best elements from two of our published books, Learning Tableau 10 - Second Edition and Tableau 10 Business Intelligence Cookbook, and delivers practical, learning modules in manageable chunks. Each chunk is delivered in a "day", and each "day" is a productive day. Each day builds your competency in Tableau. You will increase your competence in integrating analytics and forecasting to enhance data analysis during the course of this Bootcamp.</p> <p>Each chapter presents core concepts and key takeaways about a topic in Tableau and provides a series of hands-on exercises. In addition to these exercises, at the end of the chapter, you will find self-check quizzes and extra drills to challenge you, to take what you learned to the next level. To summarize, this book will equip you with step-by-step instructions through rigorous tasks, practical callouts, and various real-world examples and assignments to reinforce your understanding of Tableau 10.</p>
Table of Contents (16 chapters)
Title Page
Credits
About the Authors
www.PacktPub.com
Customer Feedback
Preface

Creating and editing calculations


A calculation is often referred to as a calculated field in Tableau because when you create a calculation, it will either show up as a new measure or a dimension in the data pane (unless it is an ad hoc calculation). Calculations consist of code that references other fields, parameters, constants, groups, or sets, and uses combinations of functions and operations to achieve a result. Sometimes this result is per row of data and sometimes it is done at an aggregate level. We'll consider the difference shortly.

There are multiple ways to create a calculated field in Tableau:

  1. Select Analysis | Create Calculated Field... from the menu.
  2. Use the drop-down menu next to Dimensions in the data pane:
  3. Right-click an empty area in the data pane and select Create Calculated Field...
  4. Use the drop-down menu on a field, set, or parameter in the data pane and select Create| Calculated Field...
  5. In Tableau 9.0 or later, double-click an empty area on the Rows, Columns, or Measure...