{"version":"1.0","type":"rich","title":"A9 Proportional Symbols Map in D3","description":"This visualization combines a U.S. state boundary map with red, green, and blue proportional circles to depict cost-of-living indices across states. Circle sizes scale linearly with each state's cost index using `d3.scaleLinear`, while positions are projected with `d3.geoAlbersUsa` and `d3.geoPath`. Data from `expstates.csv` is rendered in an SVG, and the ten highest-cost states are highlighted in green via a tooltip showing state names and indices.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/af3362442a684fc38aebe899101b0960?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}