Gist df3049cee654f94fee785b0655c7554f
This visualization shows the spread of influenza across French regions from 2003 to 2015, with a choropleth map colored by weekly case counts. A slider lets viewers scrub through time, updating the map and a label showing the current week. The code uses `d3.geo.conicConformal` for the map projection, a `d3.scale.quantize` color scale, and `queue()` to load both `regions.geojson` and the CSV dataset. Hovering over a region triggers a tooltip, and a legend displays the color-to-value ranges.
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