{"version":"1.0","type":"rich","title":"Massachusetts Rention Rates by year and quartile 10/31/2019 final","description":"This visualization maps Massachusetts school district student retention rates, overlaying circles scaled by quartile value onto a geographic outline of the state. Interactive dropdown menus filter the displayed data by retention quartile and academic year, revealing potential geographic patterns over time. The map renders with `d3.geoAlbers` and `d3.geoPath`, while point radii use `d3.scaleSqrt`. Data from the Massachusetts Department of Elementary and Secondary Education is loaded via `d3.json` and `d3.csv`, and the interface is built with React and `react-dropdown`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/08adfba0890449ad9a89dcc12cd713a2?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}