The method that shows hierarchical data in a nested format is typically called a tree visualization or a nested set model in data structures. In visualization, this is often represented by:
- Tree diagrams : These display hierarchical data as nodes connected by edges, showing parent-child relationships in a branching structure
- Treemaps : These represent hierarchical data with nested rectangles, where each rectangle is subdivided into smaller rectangles representing child nodes, effectively showing the nested structure visually
- Sunburst charts and icicle plots : These also display hierarchical data in nested, circular or linear segments, respectively, emphasizing the containment relationships
In database models, the nested set model is a method used to store hierarchical data so that it can be queried and displayed in a nested format efficiently. This contrasts with the adjacency list model and is favored for representing nested hierarchies
. To summarize:
- Tree visualization (normal or radial) shows hierarchical data as nested nodes and edges.
- Treemaps show hierarchical data as nested rectangles.
- Nested set model is a database method for representing hierarchical data in a nested structure for easy retrieval and display.
These methods effectively show hierarchical data in a nested format, making the structure and relationships clear and interpretable
