Gist 768c27ad0050241b5e9d1d8b4b1149ca

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Gist 768c27ad0050241b5e9d1d8b4b1149ca

✓ Published0🌍 Public

Last edited Dec 7, 2016

Created on Nov 27, 2016

A choropleth map of French regions displays the weekly incidence of influenza cases from 2003 to 2015. A slider lets users scrub through the time series, updating region colors from a linear scale spanning green to dark red. The map is rendered with D3’s `d3.geo.conicConformal` projection and `d3.geo.path`, while the slider’s `input` event triggers redrawing of the paths. Data comes from CSV files with weekly counts per region, loaded asynchronously via `d3.queue`, and a tooltip shows the exact value on hover.

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