Question

我创建了一个DataFrame，并尝试根据列对它进行排序。我使用了以下代码。

frame.sort_index(axis=1)

但这会导致以下错误

---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-23-93c925b11670> in <module>()
----> 1 frame.sort_index(axis=Integer(1))

/ext/sage/sage-8.4_1804/local/lib/python2.7/site-packages/pandas/core/frame.pyc in sort_index(self, axis, level, ascending, inplace, kind, na_position, sort_remaining, by)
   4455                                     inplace=inplace)
   4456 
-> 4457         axis = self._get_axis_number(axis)
   4458         labels = self._get_axis(axis)
   4459 
/ext/sage/sage-8.4_1804/local/lib/python2.7/site-packages/pandas/core/generic.pyc in _get_axis_number(self, axis)
    373                 pass
    374         raise ValueError('No axis named {0} for object type {1}'
--> 375                          .format(axis, type(self)))
    376 
    377     def _get_axis_name(self, axis):
ValueError: No axis named 1 for object type <class 'pandas.core.frame.DataFrame'>

Answer 1

对于DataFrames，要传递给轴的值为columns。

frame.sort_index(axis='columns')

对象类型<class'pandas.core.frame.dataframe'=“”>没有名为1的轴

1 个答案: