{"version":"1.0","type":"rich","title":"Untitled","description":"A grouped bar chart displays population estimates for six U.S. states across seven age brackets, colored by age group via a categorical color scale. Using D3 v4, the visualization loads CSV data with `d3.csv`, employs `d3.scaleBand` and `d3.scaleLinear` for axes, and renders SVG rectangles for bars. A legend maps age ranges to colors, while axis labels and a title clarify the data. The chart is built with a `svg` element and D3’s selection, scale, and axis APIs.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/6a387347567449cfaf97584c8c90656e?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}