Ontology.py 文件源码

def get_connectivity_matrix_nodiag(self):
        """
        Returns a similar matrix as in Ontology.get_connectivity_matrix(),
        but the diagonal of the matrix is 0.

        Note: !!!!!!!!!!!!!!!!!!!!!!!!
            d[a, a] == 0 instead of 1

        """

        if not hasattr(self, 'd_nodiag'):
            d = self.get_connectivity_matrix()
            self.d_nodiag = d.copy()
            self.d_nodiag[np.diag_indices(self.d_nodiag.shape[0])] = 0
            assert not np.isfortran(self.d_nodiag)

        return self.d_nodiag