{"version":"1.0","type":"rich","title":"Assignment 5: bubble plot with D3","description":"This bubble chart visualizes airline delay data, mapping the number of late aircraft delays on the x-axis, national aviation system delays on the y-axis, carrier delays as bubble size, and month as color. Built with D3 v7, the chart uses SVG and includes interactive tooltips that display airport details on hover. The code loads data from a CSV file, filters out zero values, and applies scales including `d3.scaleLinear`, `d3.scaleSqrt`, and `d3.scaleOrdinal` with a categorical color scheme. Axis labels and a legend are rendered using standard D3 components, with a `d3.legend` library for the color key.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/31f6366787c8483a82db71714447e3b2?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}