> For the complete documentation index, see [llms.txt](https://docs-v3.toucantoco.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-v3.toucantoco.com/data-management-in-datahub/datasets-in-toucan/preparing-data/overview-of-youprep-tm/geo/geographic-hierarchy.md). # Geographic hierarchy The Geography hierarchy helps you create a multi-level geographical structure in your data. It allows for drill-down capabilities in your dashboard, enabling users to navigate from broader geographical areas to more specific locations seamlessly. ### Step parameters * `Hierarchy level column`: The name of the column in which the hierarchy level should be stored. * `Add hierarchy`: Allows to add hierarchy levels. At least one hierarchy level must be added. * `Include null vales in results` **(boolean)\*:** parameter to include null values in results ### Example **Input**

Geo - hierarchy input

**Configuration** ```json { "hierarchy": "hierarchy_level", "add_hierarchy": ["code"] "include_nulls": false } ``` **Output**

Geo - hierarchy output

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