{"version":"1.0","type":"rich","title":"Kumar Danam area chart ","description":"This area chart visualizes the average car horsepower by year, using data from a car performance CSV loaded via `d3.csv`. The chart aggregates raw Horsepower values into yearly averages with `d3.rollup`, then renders a semi-transparent filled area, an overlaid blue line, and interactive circles. It uses `d3.area`, `d3.line`, and `d3.scaleLinear` within an SVG, with a custom mouseover tooltip. The axes are labeled \"Year\" and \"Horsepower,\" and the visualization is built entirely with D3.js v7.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/f0db995a9c47400cb655d09e7fb7143b?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}