除了基础的pandas，scikit-learn，numpy，matplotlib，seaborn以外
( 1 ) category_encoders github
属于scikit-learn compatible projects之一，下面是Binary Encoding和One-hot Encoding的区别
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| Level | "Decimal | Binary | One hot |
| | encoding" | encoding | encoding |
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| No | 0 | 000 | 000001 |
| Primary | 1 | 001 | 000010 |
| Secondary | 2 | 010 | 000100 |
| BSc/BA | 3 | 011 | 001000 |
| MSc/MA | 4 | 100 | 010000 |
| PhD | 5 | 101 | 100000 |
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... to be continued