{"version":"1.0","type":"rich","title":"NASCAR winners by starting position, split by year","description":"This visualization shows NASCAR race winners’ starting positions across years, with each dot representing a single race and its driver’s grid position. A circular mark with 50% opacity encodes each race, while tooltips reveal the driver and track name. The data comes from a CSV file loaded via `d3.csv`, and the chart is rendered using Vega-Lite’s API. The visualization uses `vl.markCircle`, `vl.x().fieldN('Year')`, and `vl.y().fieldQ('Start')` to map the fields, with color fixed to a constant red and the chart configured for full-window fit via `autosize`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/077df419172944cea5e5e5c9559a2938?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}