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Learning Tableau

Learning Tableau

By : Joshua N. Milligan
3.8 (22)
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Learning Tableau

Learning Tableau

3.8 (22)
By: Joshua N. Milligan

Overview of this book

If you want to understand your data using data visualization and don't know where to start, then this is the book for you. Whether you are a beginner or have years of experience, this book will help you to quickly acquire the skills and techniques used to discover, analyze, and communicate data visually. Some familiarity with databases and data structures is helpful, but not required.
Table of Contents (13 chapters)
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8
8. Adding Value to Analysis – Trends, Distributions, and Forecasting
12
Index

Mapping techniques


We've touched on geographic visualization throughout the book. You've seen symbol maps and filled maps. Here, we'll examine an example using a custom geocoding technique and custom shapes to give some idea of what is possible.

Supplementing the standard geographic data

We saw in Chapter 1, Creating Your First Visualizations and Dashboard, that Tableau generates the Latitude and Longitude fields when the data source contains geographic fields, which Tableau can match with its internal geographic database. Fields such as country, state, zip code, MSA, and congressional district are contained in Tableau's internal geography.

However, if you have latitude and longitude in your dataset or are able to supplement your data source with that data, you can create geographic visualizations with great precision. There are several options for supplying latitude and longitude for use in Tableau:

  • Include latitude and longitude as fields in your data source. If possible, this option will...

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