Smoothed Daily Coronavirus Deaths Line Chart
A smoothed multi-line chart compares daily COVID-19 deaths over time for the top 50 countries by cumulative deaths. The y-axis uses a logarithmic scale to accommodate wide value ranges, and the lines are smoothed via a repeated averaging technique. Built with React and D3 v5, the visualization uses a Voronoi overlay for hover detection to highlight a selected country's line and display a tooltip with details. Data is sourced from the Johns Hopkins Coronavirus dataset.
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.