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