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#!/usr/bin/env python
"""
Random graph from given degree sequence.
"""
__author__ = """Aric Hagberg (hagberg@lanl.gov)"""
__date__ = "$Date: 2004-11-03 08:11:09 -0700 (Wed, 03 Nov 2004) $"
__credits__ = """"""
__revision__ = "$Revision: 503 $"
# Copyright (C) 2004 by
# Aric Hagberg <hagberg@lanl.gov>
# Dan Schult <dschult@colgate.edu>
# Pieter Swart <swart@lanl.gov>
# All rights reserved.
# BSD license.
from networkx import *
z=[5,3,3,3,3,2,2,2,1,1,1]
print(is_valid_degree_sequence(z))
print("Configuration model")
G=configuration_model(z) # configuration model
degree_sequence = [d for n,d in G.degree()] # degree sequence
print("Degree sequence %s" % degree_sequence)
print("Degree histogram")
hist={}
for d in degree_sequence:
if d in hist:
hist[d]+=1
else:
hist[d]=1
print("degree #nodes")
for d in hist:
print('%d %d' % (d,hist[d]))
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