numpy.memmap.sort¶

memmap.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 thelast axis. kind : {‘quicksort’, ‘mergesort’, ‘heapsort’}, optional Sorting algorithm. Default is ‘quicksort’. order : str or list of str, optional Whena is an array with fields defined, this argument specifieswhich fields to compare first, second, etc. A single field canbe specified as a string, and not all fields need be specified,but unspecified fields will still be used, in the order in whichthey come up in the dtype, to break ties.

See also

numpy.sort

Return a sorted copy of an array.

argsort

Indirect sort.

lexsort

Indirect stable sort on multiple keys.

searchsorted

Find elements in sorted array.

partition

Partial sort.

Notes

Seesort for notes on the different sorting algorithms.

Examples

>>>a=np.array([[1,4],[3,1]])>>>a.sort(axis=1)>>>aarray([[1, 4],       [1, 3]])>>>a.sort(axis=0)>>>aarray([[1, 3],       [1, 4]])

Use theorder keyword to specify a field to use when sorting astructured array:

>>>a=np.array([('a',2),('c',1)],dtype=[('x','S1'),('y',int)])>>>a.sort(order='y')>>>aarray([('c', 1), ('a', 2)],      dtype=[('x', '|S1'), ('y', '<i4')])