{"version":"1.0","type":"rich","title":"Mouseover","description":"This visualization displays aggregated data about individuals under New York DOCCS custody, showing bar heights that represent the count of records for a selected variable on the x-axis against a chosen y-axis metric. Users can change both axes via dropdown menus, which re-aggregates the underlying dataset and updates the chart accordingly. The implementation uses D3 v5 functions including `d3.nest()` and `d3.rollup()` for data transformation, `d3.scaleBand()` and `d3.scaleLinear()` for scales, and `d3.axisBottom()` and `d3.axisLeft()` for axes. The visualization loads JSON data asynchronously via `d3.json()` and renders SVG rectangles with transitions on selection changes.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/9428e82c4f5842a9a421a96418ca7819?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}