Gist 7318a250abd12cc0d3e1181da3f1ecb0
This example shows a choropleth map of France, coloring each administrative region according to the cumulative number of flu cases reported during November 2014. The data is loaded from a CSV file and joined to GeoJSON features by region name. The map uses `d3.geo.conicConformal` projection and `d3.geo.path` to render the regions, with a `d3.scale.quantize` color scale mapping summed weekly values to a green color ramp. Hovering over a region displays its name in a tooltip.
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