import pandas as pd cut1 =pd.cut (pd.Series([2,3,1]),[1,2,3],right=False) cut1[1] 輸出結(jié)果為:()
A.(2,3) B.(1,2) C.[1,2) D.NaN
A.add_categories B.rename_categories C.remove_categories D.reorder_categories
A.NaN B.nan C.Nan D.null