{"version":"1.0","type":"rich","title":"CSCE 5320 - HW7 - Heatmaps","description":"This interactive heatmap visualizes CO₂ emissions per capita for multiple countries over 2016–2023, with countries as rows and years as columns. Users toggle between an alphabetically ordered matrix and a reordered version sorted by each country’s average emissions, revealing clustering patterns. Built with D3 v7, the SVG visualization uses a sequential YlOrRd color scale (via `d3.scaleSequential` and `d3.interpolateYlOrRd`) applied to the `co2_per_capita` field. Data is loaded from a local CSV file with a GitHub Gist fallback, with rows aggregated using `d3.rollup` and `d3.mean`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/a45c7c2036d541a0a6a040422c213fa4?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}