Sunburst Chart

The sunburst chart is ideal for displaying hierarchical data. Each level of the hierarchy is represented by one ring or circle with the innermost circle as the top of the hierarchy.A sunburst chart with multiple levels of categories shows how the outer rings relate to the inner rings. The sunburst chart is most effective at showing how one ring is broken into its contributing pieces.

Signal definitions may use the following properties.

Data Structure

Sunburst Chart have a simpler data structure, a flat, one-dimensional array. Nodes which don’t have any children are child/leave nodes. Nodes which have at least on child node are parent nodes. A Sunburst Chart consists of an inner circle surrounded by rings of deeper hierarchy levels. The angle of each segment is either proportional to a value or divided equally under its parent node.

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Product Volume/Share at 2+ levels - What is the product share by physician specialty, segment and influence decile?