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Melting Data for Multiple Lines

✓ Published1🌍 Public
KKazushige Okuma
Last edited Oct 3, 2019
Created on Sep 30, 2019

This visualization shows population change over time for multiple world regions, displayed as separate colored lines on a line chart. The data is processed by melting a wide-format CSV file into a tidy format and concatenating historical estimates with medium-variant projections. The code uses d3.csv, d3.nest, d3.line, and d3.curveBasis to generate the paths, with d3.axisBottom and d3.axisLeft for the axes. A d3.scaleOrdinal color scheme distinguishes regions, and a custom colorLegend component renders the categorical legend.

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MIT Licensed

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