{"version":"1.0","type":"rich","title":"Activity6_2","description":"This example demonstrates how to load and summarize the classic Iris dataset using D3 v7 within VizHub. It fetches `data.csv` asynchronously, parses it with `d3.csvParse`, and converts numeric columns to numbers. The visualization then uses `d3.flatRollup` and `d3.sum` to compute the average sepal length per species, displaying the resulting summary as formatted JSON text in a `pre` element. The file also includes local ES6 modules and a custom state management pattern to handle loading and rendering.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/2e87a03c251b4c0882ade796dfde5f6d?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}