The Mark type
The menu, highlighted in the following screenshot, allows you to choose the Mark type:
By default, the Mark type is set to Automatic. This means that Tableau chooses the best visualization based on the fields (that is, which data types you use and where).
Of course, you can change the Mark type and use any type you want. For example, if you put Order Date in Columns and Profit in Rows, Tableau displays a Line chart because it's the best way to visualize an evolution. However, by using the Marks shelf, you can select the one you prefer (for example, a bar chart, an area chart, or whatever you think is best).
Let's explore what you can ...
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