Transforming data of Historical NBA Performance
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This example displays historical average winning percentages for NBA teams, computed from a CSV dataset and rendered as a JSON array. The visualization uses D3 v7’s `flatRollup` and `sum` functions to aggregate win percentages per team across all seasons. After fetching the data via a URL, `csvParse` converts the CSV string into objects. The computed results are output as formatted text inside a `<pre>` element, demonstrating a straightforward data-transformation pipeline without additional chart rendering.
AI-generated descriptionDataset source from: https://data.world/gmoney/nba-team-records-by-year
In this transfroming data, I calcualte the historical average winning percentage for each team and put them into different array.
MIT Licensed