如何在python中使用python绘制多索引数据框？

Question

我有单索引多索引数据框。我想绘制基于该数据框的堆积条形图。该数据如下：

df= pd.DataFrame(index=pd.MultiIndex([[1,2,3],['open','closed']],[[0,0,1,1,2,2],[0,1,0,1,0,1]])) 

df['id']=[23,6,12,4,31,16] 
df 
     id 
state 
1 closed 23 
    open 6 
2 closed 12 
    open 4 
3 closed 31 
    open 16 

Answer 1

您需要unstack您的数据帧：

%matplotlib inline 
df.unstack().plot(kind='bar', stacked=True)