A data analyst is working with geographic data containing Country, Region, and City fields. To enable drilling down from a broad overview to more specific details within a single visualization, which Tableau feature should the analyst use to organize these fields?
The correct answer is to create a hierarchy. In Tableau, hierarchies allow you to organize related dimensions into a nested structure, which creates a drill-down and drill-up functionality in the view. For example, placing Country, Region, and City in a hierarchy allows a user to expand from the Country level to see Regions, and then to see Cities.
Creating a group is incorrect because it is used to combine multiple members within a single dimension into a higher-level category.
Creating a set is incorrect as it creates a custom subset of data based on a condition, resulting in an 'IN' or 'OUT' categorization.
Creating a calculated field is incorrect because while it can be used to manipulate data, it does not inherently provide the drill-down capability of a hierarchy.
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ELI5: What is a hierarchy in Tableau?
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How does creating a hierarchy improve visualization functionality?
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Can hierarchies be used with non-geographic data?
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Tableau Desktop Foundations
Exploring and Analyzing Data
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