{"version":"1.0","type":"rich","title":"activity 6 2","description":"This example loads the classic Iris flower dataset from a CSV file and displays the average sepal length for each of the three species as a formatted JSON summary. It demonstrates loading data asynchronously via `fetch`, parsing it with `csvParse`, and converting string values to numbers. The code uses `flatRollup` and `sum` from D3 v7 to aggregate the data, then renders the result as plain text in a `<pre>` element.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/15444b80c95643ac8079a08553305a96?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}