unique_values

sparse.unique_values(x, /)

Returns the unique elements of an input array x.

Parameters:

x (COO) – Input COO array. It will be flattened if it is not already 1-D.

Returns:

out – The unique elements of an input array.

Return type:

ndarray

Raises:

ValueError – If the input array is in a different format than COO.

Examples

>>> import sparse
>>> x = sparse.COO.from_numpy([1, 0, 2, 1, 2, -3])
>>> sparse.unique_values(x)
array([-3, 0, 1, 2])