Method H_v2e

easygraph/classes/base.py:564–569

r"""Return the hypergraph incidence matrix with ``sparse matrix`` format.

(self)

    @property
    def H_v2e(self) -> torch.Tensor:
        r"""Return the hypergraph incidence matrix with ``sparse matrix`` format."""
        if self.cache.get("H_v2e") is None:
            _tmp = [self.H_v2e_of_group(name) for name in self.group_names]
            self.cache["H_v2e"] = torch.cat(_tmp, dim=1)
        return self.cache["H_v2e"]

    def H_v2e_of_group(self, group_name: str) -> torch.Tensor:
        r"""Return the hypergraph incidence matrix with ``sparse matrix`` format in the specified hyperedge group.