COO.nonzero¶
-
COO.
nonzero
()[source]¶ Get the indices where this array is nonzero.
Returns: idx – The indices where this array is nonzero. Return type: tuple[numpy.ndarray] See also
numpy.ndarray.nonzero
- NumPy equivalent function
Raises: ValueError
– If the array doesn’t have zero fill-values.Examples
>>> s = COO.from_numpy(np.eye(5)) >>> s.nonzero() (array([0, 1, 2, 3, 4]), array([0, 1, 2, 3, 4]))