Melting Data for Multiple Lines

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Melting Data for Multiple Lines

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Last edited Apr 4, 2020

Created on Apr 4, 2020

Forked from Melting Data for Multiple Lines

This example shows animated multi-line charts tracking COVID-19 confirmed cases over time for several countries, with colored lines that progressively extend as the day counter advances. A legend and axis labels accompany the visualization. The code uses d3.nest() to group data by country, d3.line() with curveBasis for smooth paths, and d3.scaleLinear for x/y axes. Circle markers and text labels display the latest value of each line. Data comes from CSV files processed through a custom loadAndProcessData function.

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