代码示例:
import pandas as pd
data = {'location': ['A', 'A', 'B', 'B', 'C', 'C'], 'datetime': pd.date_range('2022-01-01', '2022-01-06')}
grouped = data.groupby([data['datetime'].dt.day, 'location'])
for group, data in grouped: print(group) print(data)
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