{"version":"1.0","type":"rich","title":"A9 - Symbols Map","description":"This map visualizes housing cost indices across U.S. states, using circles overlaid on a geographic map to represent relative expenses. The code loads geographic boundaries from `states.json` and cost data from a CSV, then renders state paths with `d3.geoPath` and an equirectangular projection. Circle radii scale proportionally to housing costs, with hover tooltips displaying exact values via D3's `title` element. The visualization uses D3 v7 and a sequential blue color scale for subtle differentiation.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/c4aee5d1ab7d4028859fc0c501b0e621?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}