{"version":"1.0","type":"rich","title":"Activity_6-Task_4","description":"This example displays the average sepal length for each iris species in the classic Iris dataset, presenting the computed summary as a formatted JSON list in a `<pre>` element. The visualization first loads and parses `data.csv`, then uses the `flatRollup` API with a custom `sum` aggregation to group records by species and calculate the mean. It relies on D3 v7's `select`, `csvParse`, and `flatRollup` functions to transform the raw measurements into a concise textual summary.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/b1bb9aa9464e4e6a95c74a2f35532d67?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}