问题描述
谁能帮忙解决这个问题。我正在获取一个网络并将其绘制为如下图:
g = nx.DiGraph()
//creating the graph......
print(nx.info(g))
nx.info(g) 告诉我节点数是 18772。
我得到了它的图表如下:
然而,在删除 30% 的最重要节点后:
thirty_percent = int(g.number_of_nodes() * 0.30)
temp_g = g.copy()
print('initial number of nodes:',g.number_of_nodes())
print('nodes deleted (30%):',thirty_percent)
mostImportantNodes = sorted(nx.degree_centrality(g).items(),key=lambda x: x[1],reverse=True)
for n in range(0,thirty_percent):
node = mostImportantNodes[n][0]
temp_g.remove_node(node)
print(nx.info(temp_g))
# drawing the network graph
print('Graph after removing 30% of the most important nodes:')
print(datetime.now())
plt.clf()
pos = nx.spring_layout(temp_g)
nx.draw_networkx_nodes(temp_g,pos,node_size=10)
nx.draw_networkx_edges(temp_g,edge_color='black',alpha=0.1,arrows=True)
plt.show()
print(datetime.now())
它提供了有关新图形的正确信息,但是图形非常糟糕,似乎没有添加节点 已删除!
initial number of nodes: 18772
nodes deleted (30%): 5631
Name:
Type: DiGraph
Number of nodes: 13141
Number of edges: 44911
Average in degree: 3.4176
Average out degree: 3.4176
highest 5 degrees: [40,40,38,36,36]
解决方法
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