Graphical degree sequence

Test sequences for graphiness.

is_graphical(sequence[, method])

Returns True if sequence is a valid degree sequence.

is_digraphical(in_sequence, out_sequence)

Returns True if some directed graph can realize the in- and out-degree sequences.

is_multigraphical(sequence)

Returns True if some multigraph can realize the sequence.

is_pseudographical(sequence)

Returns True if some pseudograph can realize the sequence.

is_valid_degree_sequence_havel_hakimi(...)

Returns True if deg_sequence can be realized by a simple graph.

is_valid_degree_sequence_erdos_gallai(...)

Returns True if deg_sequence can be realized by a simple graph.