def graph_degree(A):
"""
Returns the degree for the nodes (rows) of a symmetric
graph in sparse CSR or CSC format, or a qobj.
Parameters
----------
A : qobj, csr_matrix, csc_matrix
Input quantum object or csr_matrix.
Returns
-------
degree : array
Array of integers giving the degree for each node (row).
"""
if A.__class__.__name__ == 'Qobj':
return _node_degrees(A.data.indices, A.data.indptr, A.shape[0])
else:
return _node_degrees(A.indices, A.indptr, A.shape[0])
def graph_degree(A):
"""
Returns the degree for the nodes (rows) of a symmetric
graph in sparse CSR or CSC format, or a qobj.
Parameters
----------
A : qobj, csr_matrix, csc_matrix
Input quantum object or csr_matrix.
Returns
-------
degree : array
Array of integers giving the degree for each node (row).
"""
if A.__class__.__name__=='Qobj':
return _node_degrees(A.data.indices, A.data.indptr, A.shape[0])
else:
return _node_degrees(A.indices, A.indptr, A.shape[0])
def graph_degree(A):
"""
Returns the degree for the nodes (rows) of a symmetric
graph in sparse CSR or CSC format, or a qobj.
Parameters
----------
A : qobj, csr_matrix, csc_matrix
Input quantum object or csr_matrix.
Returns
-------
degree : array
Array of integers giving the degree for each node (row).
"""
if not (sp.isspmatrix_csc(A) or sp.isspmatrix_csr(A)):
raise TypeError('Input must be CSC or CSR sparse matrix.')
return _node_degrees(A.indices, A.indptr, A.shape[0])
def graph_degree(A):
"""
Returns the degree for the nodes (rows) of a symmetric
graph in sparse CSR or CSC format, or a qobj.
Parameters
----------
A : qobj, csr_matrix, csc_matrix
Input quantum object or csr_matrix.
Returns
-------
degree : array
Array of integers giving the degree for each node (row).
"""
if not (sp.isspmatrix_csc(A) or sp.isspmatrix_csr(A)):
raise TypeError('Input must be CSC or CSR sparse matrix.')
return np.asarray(_node_degrees(A.indices, A.indptr, A.shape[0]))
