熊貓：在多指標數據幀重命名索引標籤若爲NaN

Question

我怎麼能代替低於DF的內側索引標籤？

Question         profile_gender. Gender   
Values         Male  Female 
Question     Values         
XCS_3. Think of a problem? NaN  25.192318 25.900784 

到：

Question         profile_gender. Gender   
Values         Male  Female 
Question     Values         
XCS_3. Think of a problem? Okay Done 25.192318 25.900784 

我的失敗嘗試：

df.index = df.index.set_levels(['Okay Done'], 1) 

不執行任何操作，甚至不拋出一個錯誤代碼

Answer 1

貌似我不得不更換整個這是非常煩人的指數。

df.index = pd.MultiIndex.from_tuples([('XCS_3. Think of a problem?', ' Okay Done')], 
            names=['Question', 'Values'])