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Treemaps display hierarchical data by using nested rectangles, that is, smaller rectangles within a larger rectangle.
The Treemap Chart is intended for the visualization of hierarchical data in the form of nested rectangles. Each level of such a tree structure is depicted as a colored rectangle, often called a branch, which contains other rectangles (leaves). The space inside each of the rectangles composing treemaps is highlighted based on the quantitative value of the corresponding data point.
