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A collapsible D3 tree diagram visualizes the hierarchical relationships within a dataset on hip replacement rankings, organized by country, city, institution, and expert. The visualization uses a tidy tree layout calculated with `d3.tree()` and rendered with SVG paths. Data is loaded asynchronously from a CSV file via `d3.csv`, then processed into a nested tree structure. The hierarchy is built with `d3.hierarchy()`, and nodes use `d3.linkHorizontal()` for curved connecting links, with animations for collapsing and expanding branches.
AI-generated descriptionD3 Tidy tree Demo for Serge Bouissou (Ryteh's CTO).
MIT Licensed