Smoothed Daily Coronavirus Deaths Line Chart
This chart displays smoothed daily COVID-19 death counts for the top 50 countries by cumulative deaths, with a logarithmic y-axis to accommodate wide variation. Hovering over any data point uses a d3.Delaunay Voronoi overlay to highlight the corresponding country’s full line and show a tooltip with the date and total deaths. The smoothing is applied via a repeated averaging blur function to the raw Johns Hopkins dataset, and the visualization is rendered as an SVG using React and D3 scales, axes, and line generators.
AI-generated descriptionLine chart of Coronavirus cases to date, by country. Data from Johns Hopkins Coronavirus Dataset.
Hover to see details and illuminate lines.
This variant shows daily death numbers, smoothed using the repeated averaging technique described in D3: Histogram Blur / Smoothing, for the top 20 countries by cumulative deaths.