pandas.Index.sort_values¶
-
Index.
sort_values
(return_indexer=False, ascending=True)[source]¶ Return a sorted copy of the index.
Return a sorted copy of the index, and optionally return the indices that sorted the index itself.
Parameters: return_indexer : bool, default False
Should the indices that would sort the index be returned.
ascending : bool, default True
Should the index values be sorted in an ascending order.
Returns: sorted_index : pandas.Index
Sorted copy of the index.
indexer : numpy.ndarray, optional
The indices that the index itself was sorted by.
See also
pandas.Series.sort_values
- Sort values of a Series.
pandas.DataFrame.sort_values
- Sort values in a DataFrame.
Examples
>>> idx = pd.Index([10, 100, 1, 1000]) >>> idx Int64Index([10, 100, 1, 1000], dtype='int64')
Sort values in ascending order (default behavior).
>>> idx.sort_values() Int64Index([1, 10, 100, 1000], dtype='int64')
Sort values in descending order, and also get the indices idx was sorted by.
>>> idx.sort_values(ascending=False, return_indexer=True) (Int64Index([1000, 100, 10, 1], dtype='int64'), array([3, 1, 0, 2]))