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Learning Tableau 2025 - Sixth Edition
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Often, you will want to compare the differences between measured values across different categories. You might find yourself asking the following questions:
In each case, you are looking to make a comparison (among stores, wind farms, or doctors) in terms of some quantitative measurement (the number of customers, units of electricity, and patients).
Let’s look at some examples of visualizations that help answer questions like these.
Here is a simple bar chart, similar to the one we built in Chapter 1, Taking Off with Tableau:
Figure 3.1: A bar chart showing the number of patient visits by department
This bar chart makes it easy to compare the number of patient visits between various departments in the hospital. As a dimension, Department slices the data according to each...