{"version":"1.0","type":"rich","title":"blog life expectancy","description":"This chart shows life expectancy growth from 1890 to 2010 for five North American countries: the United States, Canada, Mexico, Guatemala, and Cuba. Each country appears as a colored line, with gray circles marking individual data points. The chart uses a black background with white axes and labels, and the color scheme comes from the ColorBrewer Accent palette. The code loads simplified data from a GitHub-hosted CSV via `d3.csv`, applies `d3.scaleLinear` for both axes, and draws lines with `d3.line`. It builds the SVG output using `d3.select` and `d3.append`, while the legend is generated with `d3.scaleOrdinal` from the d3-legend library.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/4e1d7543197a47ed873d233ecf1385d1?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}