相关疑难解决方法(0)

我有一个如下所示的数据框:

import pandas as pd
datelisttemp = pd.date_range('1/1/2014', periods=3, freq='D')
s = list(datelisttemp)*3
s.sort()
df = pd.DataFrame({'BORDER':['GERMANY','FRANCE','ITALY','GERMANY','FRANCE','ITALY','GERMANY','FRANCE','ITALY' ], 'HOUR1':[2 ,2 ,2 ,4 ,4 ,4 ,6 ,6, 6],'HOUR2':[3 ,3 ,3, 5 ,5 ,5, 7, 7, 7], 'HOUR3':[8 ,8 ,8, 12 ,12 ,12, 99, 99, 99]}, index=s)

这给了我:

Out[458]: df

             BORDER  HOUR1  HOUR2  HOUR3
2014-01-01  GERMANY      2      3      8
2014-01-01   FRANCE      2      3      8
2014-01-01    ITALY      2      3      8
2014-01-02  GERMANY      4      5     12
2014-01-02   FRANCE      4      5     12
2014-01-02    ITALY      4 …