Book Image

Tableau 10 Business Intelligence Cookbook

By : Donabel Santos, Paul Banoub
Book Image

Tableau 10 Business Intelligence Cookbook

By: Donabel Santos, Paul Banoub

Overview of this book

Tableau is a software tool that can speed up data analysis through its rich visualization capabilities, and help uncover insights for better and smarter decision making. This book is for the business, technology, data and analytics professionals who use and analyze data and data-driven approaches to support business operations and strategic initiatives in their organizations. This book provides easy-to-follow recipes to get the reader up and running with Tableau 10, and covers basic to advanced use cases and scenarios. The book starts with building basic charts in Tableau and moves on to building more complex charts by incorporating different Tableau features and interactivity components. There is an entire chapter dedicated to dashboard techniques and best practices. A number of recipes specifically for geospatial visualization, analytics, and data preparation are also covered. By the end of this book, you’ll have gained confidence and competence to analyze and communicate data and insights more efficiently and effectively by creating compelling interactive charts, dashboards, and stories in Tableau.
Table of Contents (17 chapters)
Tableau 10 Business Intelligence Cookbook
Credits
About the Author
Acknowledgements
About the Reviewer
www.PacktPub.com
Preface
Index

Mapping custom polygons


Tableau supports not only using geographic map tiles, but also drawing and display custom polygons (or closed shapes). This can be helpful when visualizing or emphasizing certain areas in a map or background image.

In this recipe, we will draw custom polygons around two points of interest in Vancouver, Canada:

Getting ready

To follow this recipe, open B05527_05 – STARTER.twbx. Use the worksheet called Custom Polygon, and connect to the Vancouver Points of Interest data source:

How to do it...

Here are the steps to create the custom polygon areas:

  1. Change the mark type in the Marks card dropdown to Polygon.

  2. Double-click on the Latitude and Longitude appearing under Measures. Make sure you double-click the Latitude and Longitude fields from the data source, not the ones that have the (generated) suffix.

  3. From Dimensions, drag Shape Id to Detail.

  4. From Measures, drag Point to Path in the Marks card.

  5. Go to the Analysis menu, and uncheck Aggregate.

  6. From Dimensions, drag Location...