ValueError: The truth value of a Series is ambiguous. Use a.empty, a.bool(), a.item(), a.any() or a.all().

本文转载自查看原文 2019-12-18 14:59 357 python ML / DL ERROR

# mfbaseinfo_org[mfbaseinfo_org['prod_code']=='008345']
exc_chfsec['prod_begin_date'] = pd.to_datetime(exc_chfsec['prod_begin_date']) 
exc_chfsec['init_date'] = pd.to_datetime(exc_chfsec['init_date']) 
for i in list(exc_chfsec['prod_code']):
    if ((exc_chfsec.loc[exc_chfsec['prod_code']==i,'prod_begin_date']) ) > ((exc_chfsec.loc[exc_chfsec['prod_code']==i,'init_date'])):
        print(i)
    else:
        print("paa")

改为：

# mfbaseinfo_org[mfbaseinfo_org['prod_code']=='008345']
exc_chfsec['prod_begin_date'] = pd.to_datetime(exc_chfsec['prod_begin_date']) 
exc_chfsec['init_date'] = pd.to_datetime(exc_chfsec['init_date']) 
for i in list(exc_chfsec['prod_code']):
    if ((exc_chfsec.loc[exc_chfsec['prod_code']==i,'prod_begin_date']).values ) > ((exc_chfsec.loc[exc_chfsec['prod_code']==i,'init_date']).values):
        print(i)
    else:
        print("paa"）

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