Chapter 3 Building Your First Visualization

“If we have made this our task, then there is no more rational procedure than the method of trial and error—of conjecture and refutation: of boldly proposing theories; of trying our best to show that these are erroneous; and of accepting them tentatively if our critical efforts are unsuccessful.”

Karl Popper1

Now that you’ve learned how to connect Tableau to a variety of data sources, you can start building visualizations. In this chapter, you learn about all of the chart types provided by the Show Me button. You will discover how to add trend lines and reference lines and how to control the way your data is sorted and filtered. You’ll see how creating ad hoc groups, sets, and hierarchies can produce information not available in the data source. The chapter covers Tableau’s discrete and continuous data hierarchies, along with how you can alter Tableau’s default date hierarchies by creating your own custom dates.

Fast and Easy Analysis via Show Me

Tableau’s mission statement is to help you see and understand your data by enabling self-service visual analytics. The software is designed to facilitate analysis for non-technical information consumers. This is the concept behind Tableau’s Show Me button. Consider Show Me to be your expert helper. Show Me tells you what chart to use and why. It will also help you create complicated visualizations faster and with less effort. For example, advanced map visualizations are best started via ...

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