{"version":"1.0","type":"rich","title":"Bubble chart - Engine Displacement vs. Fuel Economy - Bubble size = weigth, Color = Num Cylinders","description":"A bubble chart displays engine displacement against fuel economy for a dataset of cars loaded via `d3.csv`. Circle radius encodes vehicle weight using `d3.scaleSqrt`, while color, mapped through `d3.scaleOrdinal` with `d3.schemeCategory10`, distinguishes cylinder counts. Axes and labels are generated with `d3.axisBottom` and `d3.axisLeft`, and the SVG rendering includes a hover effect that increases opacity. A legend lists cylinder categories with colored swatches. The chart uses D3 v7 to bind data and render circles within an SVG container sized to the window.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/b93d773b05e24b2a871f8eda2a675502?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}