python的dataframe如何进行关系除法?

pandas怎样进行关系除法呢?

python的dataframe如何进行关系除法?

import pandas as pd

R = {'A':['a','a','a','b','e','e'],

'B':['b','b','b','c','d','d'],

'C':['c','e','d','e','c','e'],

'D':['d','f','e','f','d','f']}

R = pd.DataFrame(R)

print('R',R)

# dataframe的每一列除以series

S = {'C':['c','e'],

'D':['d','f'],

}

S= pd.DataFrame(S)

print('S',S)

#想得到R/S={'A':['a','e'];'B':['b','d']}

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