ndarray.sort(axis=-1, kind='quicksort', order=None)
Sort an array, in-place.
Parameters: |
axis : int, optional Axis along which to sort. Default is -1, which means sort along the last axis. kind : {‘quicksort’, ‘mergesort’, ‘heapsort’}, optional Sorting algorithm. Default is ‘quicksort’. order : str or list of str, optional When |
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See also
numpy.sort
argsort
lexsort
searchsorted
partition
See sort
for notes on the different sorting algorithms.
>>> a = np.array([[1,4], [3,1]]) >>> a.sort(axis=1) >>> a array([[1, 4], [1, 3]]) >>> a.sort(axis=0) >>> a array([[1, 3], [1, 4]])
Use the order
keyword to specify a field to use when sorting a structured array:
>>> a = np.array([('a', 2), ('c', 1)], dtype=[('x', 'S1'), ('y', int)]) >>> a.sort(order='y') >>> a array([('c', 1), ('a', 2)], dtype=[('x', '|S1'), ('y', '<i4')])
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https://docs.scipy.org/doc/numpy-1.13.0/reference/generated/numpy.ndarray.sort.html