Concating大熊貓據幀

我有以下數據框：Concating大熊貓據幀

df1 = pd.DataFrame.from_dict({'A':[3,5,1,7], 'DateTime' : pd.date_range("11:00", "14:00", freq="60min")}).set_index('DateTime') 
df2 = pd.DataFrame.from_dict({'B':[13,15,1,17], 'DateTime' : pd.date_range("12:00", "15:00", freq="60min")}).set_index('DateTime')

我嘗試以下操作：

pd.concat([df1, df2], join='outer') 
         A  B 
DateTime      
2017-04-19 11:00:00 3.0 NaN 
2017-04-19 12:00:00 5.0 NaN 
2017-04-19 13:00:00 1.0 NaN 
2017-04-19 14:00:00 7.0 NaN 
2017-04-19 12:00:00 NaN 13.0 
2017-04-19 13:00:00 NaN 15.0 
2017-04-19 14:00:00 NaN 1.0 
2017-04-19 15:00:00 NaN 17.0

我如何獲得替代如下：

     A  B 
DateTime      
2017-04-19 11:00:00 3.0 NaN 
2017-04-19 12:00:00 5.0 13.0 
2017-04-19 13:00:00 1.0 15.0 
2017-04-19 14:00:00 7.0 1.0 
2017-04-19 15:00:00 NaN 17.0

來源

2017-04-19 Zanam

您需要設置該軸爲1.

pd.concat([df1, df2], join='outer', axis=1) 


         A  B 
DateTime      
2017-04-19 11:00:00 3.0 NaN 
2017-04-19 12:00:00 5.0 13.0 
2017-04-19 13:00:00 1.0 15.0 
2017-04-19 14:00:00 7.0 1.0 
2017-04-19 15:00:00 NaN 17.0

來源

2017-04-19 19:45:16 User193452

Concating大熊貓據幀

回答

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