Sets

Sets are custom-created fields used to define a subset of data based on pre-defined conditions or rules.

Think of sets as custom segments that are always binary: a data point is either in or out of the segment depending on whether the data point meets the criteria defined. Sets are created on dimensions, though your conditions can include measures if required. Sets can either be static or dynamic, and you can also combine multiple sets into one set in Tableau, which can be pretty useful, as you will learn from the following exercises. A set is identified in the Data pane by the field with a Venn diagram icon as shown here:

Figure 11.67: Venn diagram icon

Static Sets

As mentioned in the preceding section, sets can be either dynamic or static. In static sets, you define the set rules and create a fixed subset of the data, where the members of the set are not updated if the underlying data is updated with new data. For example, you create a Top City...