2020 Q1 US Spending
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This chart shows the distribution of US federal spending for the first quarter of 2020, displaying each agency’s percentage of total expenditures as an animated pie chart. Built with D3 v4 (SVG), the visualization uses a pie generator and arc generator, with labels positioned via an arc centroid. Data loads from a CSV file, and a path transition with `transition.attrTween` and `d3.interpolate` animates the arcs expanding outward over two seconds. A sequential blue color scale assigns distinct hues to each category.
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