def contactsGraph():
fileName = path + "connections-28-11-12"
vertexIdDict = {}
vertexIdSet = set([])
edgeSet = set([])
edgeArray = []
graph = igraph.Graph()
i = 0
j = 0
with open(fileName) as f:
f.readline()
for line in f:
if i % 50000 == 0:
print(i)
words = line.split()
vId1 = int(words[0])
vId2 = int(words[1])
if vId1 not in vertexIdSet:
vertexIdDict[vId1] = j
vertexIdSet.add(vId1)
j += 1
if vId2 not in vertexIdSet:
vertexIdDict[vId2] = j
vertexIdSet.add(vId2)
j += 1
if (vertexIdDict[vId1], vertexIdDict[vId2]) not in edgeSet and (vertexIdDict[vId2], vertexIdDict[vId1]) not in edgeSet:
edgeArray.append([vertexIdDict[vId1], vertexIdDict[vId2]])
edgeSet.add((vertexIdDict[vId1], vertexIdDict[vId2]))
i += 1
print("Read " + str(i) + " lines with " + str(j) + " vertices")
graph.add_vertices(j)
graph.add_edges(edgeArray)
print(igraph.summary(graph))
graphStats = GraphStatistics()
statsArray = graphStats.scalarStatistics(graph, slowStats=False)
print(graphStats.strScalarStatsArray(statsArray))
xs, ys = zip(*[(left, count) for left, _, count in graph.degree_distribution().bins()])
plt.figure(0)
plt.bar(xs[0:30], ys[0:30])
plt.xlabel("Degree")
xs, ys = zip(*[(left, count) for left, _, count in graph.components().size_histogram().bins()])
plt.figure(1)
plt.bar(xs[0:30], ys[0:30])
plt.xlabel("Component size")
plt.show()
def fullCoauthorGraph():
fileName = path + "coauthorsGraph"
graph = igraph.Graph()
graph = graph.Read_Edgelist(fileName)
graph = graph.as_undirected()
print(igraph.summary(graph))
graphStats = GraphStatistics()
statsArray = graphStats.scalarStatistics(graph, slowStats=False)
print(graphStats.strScalarStatsArray(statsArray))
def articleGroupsGraph():
fileName = path + "articleGroupMembership-28-11-12"
graph = readBipartiteGraph(fileName)
print(igraph.summary(graph))
graphStats = GraphStatistics()
statsArray = graphStats.scalarStatistics(graph, slowStats=False)
print(graphStats.strScalarStatsArray(statsArray))
xs, ys = zip(*[(left, count) for left, _, count in graph.degree_distribution().bins()])
plt.figure(0)
plt.bar(xs[0:30], ys[0:30])
plt.xlabel("Degree")
xs, ys = zip(*[(left, count) for left, _, count in graph.components().size_histogram().bins()])
plt.figure(1)
plt.bar(xs[0:30], ys[0:30])
plt.xlabel("Component size")
plt.show()