{"version":"1.0","type":"rich","title":"Fork of Hello VizHub","description":"This example visualizes gold stock price data as a pie chart grouped by year, showing the sum of closing prices for each year. It loads CSV data from a GitHub Gist, cleans the dataset by removing columns and filtering low-volume rows, then aggregates values using `d3.nest` and `d3.sum`. The chart is rendered with D3 v6 as SVG elements, using `d3.pie`, `d3.arc`, and `d3.scaleOrdinal` with `d3.schemeCategory10`, alongside a color-coded legend beside the pie slices.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/6ccc42cd4485413ea7937ea73ddc3188?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}