{"version":"1.0","type":"rich","title":"Data visualizations","description":"This visualization uses D3 v5 to display cumulative COVID-19 vaccination totals over time for multiple countries, with each country represented by a distinct colored line. The line chart employs a time-based x-axis and a linear y-axis scaled to billions of vaccinations. The code uses `d3.csv`, `scaleTime`, `scaleLinear`, `scaleOrdinal`, `nest`, and `line` with `curveBasis` to render the SVG paths, while a custom color legend function shows the country categories. Data comes from a GitHub-hosted CSV of vaccination records.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/cd0da407db7b4f0098e148b6f6910ed6?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}