A tree map is a space-filling visualization that represents hierarchical data using nested rectangles. The size of each rectangle reflects a numeric value, making it ideal for visualizing proportions within categories and subcategories.
When to Use a Tree Map
- Visualize proportions within a hierarchy
- Compare nested categories or business units
- Explore product or segment contribution to overall value
Common Use Cases
- Sales by product category and subcategory
- Expenses by department and team
- Portfolio breakdown by asset class
Best Practices
- Use clear labels or tooltips — rectangles may be small
- Limit hierarchy depth to 2–3 levels
- Use color to differentiate categories or indicate performance
Tree Maps in ClicData
- Visualize category contribution to totals with dynamic sizing
- Customize color by dimension or KPI performance
- Add interactive drill-downs for deeper exploration