{"version":"1.0","type":"rich","title":"D3.js Bar Chart","description":"This bar chart displays the top 15 most expensive cities by their mean cost of living index, sourced from a CSV file. Using D3 v4, the code filters data by rank, nests entries by city, and computes averages with `d3.nest().rollup()`. It renders an SVG with `d3.scaleBand` and `d3.scaleLinear` axes, while interactive tooltips appear on mouseover via `d3.select` and style changes.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/4cec6bb5be0345ecb0ebe74c0604652f?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}