相关疑难解决方法(0)

df = pd.DataFrame([[1,2,3], [10,20,30], [100,200,300]])
df.columns = pd.MultiIndex.from_tuples((("a", "b"), ("a", "c"), ("d", "f")))
df

回报

     a         d
     b    c    f
0    1    2    3
1   10   20   30
2  100  200  300

和

df.columns.levels[1]

回报

Index([u'b', u'c', u'f'], dtype='object')

我想重命名"f"为"e".据pandas.MultiIndex.rename我说:

df.columns.rename(["b1", "c1", "f1"], level=1)

但它提出了

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-110-b171a2b5706c> in <module>()
----> 1 df.columns.rename(["b1", "c1", "f1"], level=1)

C:\Users\USERNAME\AppData\Local\Continuum\Miniconda2\lib\site-packages\pandas\indexes\base.pyc in set_names(self, names, level, inplace)
    994         if level is not None and …