Treemaps capture relative sizes of data categories, allowing for quick understanding of the size and contribution of each item in a category. A gradient color scale can further enhance the perception of which items are largely represented in a category.
Let us then see how to build step-by-step a treemap on Tableau. Our goal is to create a treemap showing sales per sub-category of product from the Sample Superstore data.
Step 1. Create a treemap
- Connect to the data source Sample – Superstore.
- Select Square from the dropdown menu in the Marks card.
- Drag Subcategory on Detail in the Marks card.
- Drag Sales on Size in the Marks card.
- Drag Sales on Color in the Marks card.
- Drag both Sales and Subcategory on Label in the Marks card.
- Click on Label to align the information at the center, change font and so on. There you go!
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