{"version":"1.0","type":"rich","title":"Fork of Fork of A7: Line Chart","description":"This multi-line chart tracks average engine horsepower from 2010 onward for Audi, BMW, Toyota, and Ford, using data from a cars CSV file. The visualization filters the dataset to these four manufacturers and aggregates values by year, drawing one colored line per brand. Built with D3.js v6, it uses `d3.rollup` to compute group means, `d3.line` for path generation, and the `d3-legend` plugin to render a color legend in an SVG canvas. Missing data points are handled with null gaps in the line stroke.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/e570ee7496464f6792874a291b1555ad?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}