{"version":"1.0","type":"rich","title":"Untitled","description":"A nested bar chart displays the distribution of three values across two groups and three categories. The visualization uses D3 v3’s ordinal scales (`d3.scale.ordinal`) and linear scale (`d3.scale.linear`) to position bars, with SVG rendering. Data is loaded from CSV (`data.csv`) and structured via `d3.nest` into hierarchical group and category levels. Axes are drawn with `d3.svg.axis`, and nested `<g>` elements group bars by group and category.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/98ecfa2965b349538466c4268105eb50?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}