Data Structure ?
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Data Structure ?
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README.md
文脈：米国郡の多様性
内容：シンプソン多様性指数を用いた米国各郡の多様性指数：D = 1 - ∑(n/N)^2（ここで、nは特定の人種の人数、Nは全人種の総人数で、ランダムに2人を選んで異なる人種の2人を選ぶ確率（生態学的エントロピー）を求める）
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- 1. The data originates from internet data collection or provided by service providers, and this platform offers users the ability to view and browse datasets.
- 2. This platform serves only as a basic information display for datasets, including but not limited to image, text, video, and audio file types.
- 3. Basic dataset information comes from the original data source or the information provided by the data provider. If there are discrepancies in the dataset description, please refer to the original data source or service provider's address.
- 1. All datasets on this site are copyrighted by their original publishers or data providers.
- 1. If you need to repost data from this site, please retain the original data source URL and related copyright notices.
- 1. If any data on this site involves infringement, please contact us promptly, and we will arrange for the data to be taken offline.
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