Method coo

python/dgl/sparse/sparse_matrix.py:94–116

r"""Returns the coordinate list (COO) representation of the sparse matrix. See `COO in Wikipedia `_. Returns ------- torch.Tensor Row coordinate torch.Tensor

(self)

        return self.coo()[1]

    def coo(self) -> Tuple[torch.Tensor, torch.Tensor]:
        r"""Returns the coordinate list (COO) representation of the sparse
        matrix.

        See `COO in Wikipedia <https://en.wikipedia.org/wiki/
        Sparse_matrix#Coordinate_list_(COO)>`_.

        Returns
        -------
        torch.Tensor
            Row coordinate
        torch.Tensor
            Column coordinate

        Examples
        --------

        >>> indices = torch.tensor([[1, 2, 1], [2, 4, 3]])
        >>> A = dglsp.spmatrix(indices)
        >>> A.coo()
        (tensor([1, 2, 1]), tensor([2, 4, 3]))
        """
        return self.c_sparse_matrix.coo()

    def indices(self) -> torch.Tensor:
        r"""Returns the coordinate list (COO) representation in one tensor with