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Transforming Data

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Vvineelaramulapalli32
Last edited Jul 1, 2023
Created on Jul 1, 2023
Forked from Hello VizHub

This example summarizes the classic Iris flower dataset by grouping measurements by species and displaying the average sepal length for each in a simple preformatted text output. The visualization demonstrates D3.js data transformation workflows by loading a CSV file with `d3.csvParse`, converting string values to numbers, and then using `flatRollup` with `sum` to calculate group means. The resulting summary is rendered as JSON text in the page, showing how raw tabular data can be aggregated into concise, readable statistics.

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