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pandas.DataFrame.sort_index

DataFrame.sort_index(self, axis=0, level=None, ascending=True, inplace=False, kind='quicksort', na_position='last', sort_remaining=True, by=None) [source]

Sort object by labels (along an axis).

Parameters:
axis : {0 or ‘index’, 1 or ‘columns’}, default 0

The axis along which to sort. The value 0 identifies the rows, and 1 identifies the columns.

level : int or level name or list of ints or list of level names

If not None, sort on values in specified index level(s).

ascending : bool, default True

Sort ascending vs. descending.

inplace : bool, default False

If True, perform operation in-place.

kind : {‘quicksort’, ‘mergesort’, ‘heapsort’}, default ‘quicksort’

Choice of sorting algorithm. See also ndarray.np.sort for more information. mergesort is the only stable algorithm. For DataFrames, this option is only applied when sorting on a single column or label.

na_position : {‘first’, ‘last’}, default ‘last’

Puts NaNs at the beginning if first; last puts NaNs at the end. Not implemented for MultiIndex.

sort_remaining : bool, default True

If True and sorting by level and index is multilevel, sort by other levels too (in order) after sorting by specified level.

Returns:
sorted_obj : DataFrame or None

DataFrame with sorted index if inplace=False, None otherwise.

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Licensed under the 3-clause BSD License.
https://pandas.pydata.org/pandas-docs/version/0.25.0/reference/api/pandas.DataFrame.sort_index.html