ICE-06: Bar Chart
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A bar chart visualizes total revenue by product category, with each bar’s height and color mapping to aggregated sales data and category identity. The D3 v7 code loads a CSV from a GitHub gist, rolls up rows by category using `d3.rollup` and `d3.sum`, then renders SVG bars with `d3.scaleBand` and `d3.scaleOrdinal`. Axes, value labels, and chart titles are added via D3 selections, while the React wrapper only displays static text and does not participate in the chart rendering.
AI-generated descriptionMIT Licensed