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pandas from beginner to proficient - data cleaning - classified data
Enterprise
2023-12-17 21:13:38
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pandas-02-data cleaning & preprocessing
E. Classified data
1. Applicability
2. Categorical extended data type
2.1 Convert a Series into a Categorical class through astype
2.2 Generate Categorical class through pd.Categorical
2.3 Convert the label list and integer list into the Categorical class through pd.Categorical.from_codes
2.4 Attributes of the Categorical class
2.5 Methods of Categorical class
3. Practical application: first divide into bins, then add category labels, group and aggregate to calculate statistics for each category, and finally convert to one-hot vector
4. Performance comparison
Use S in the text to represent
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Origin
blog.csdn.net/qq_48081868/article/details/132520433
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