显示投影网络中边的权重

Question

我已经投影了一个二部图并制作了一个新的加权图。我想绘制图形，并显示边缘权重。

这是我的尝试。

import networkx as nx
import matplotlib.pyplot as plt
from networkx.algorithms import bipartite
g=nx.Graph()
g.add_nodes_from(['s1','s2','s3','s4','s5'],bipartite=0)
g.add_nodes_from(['t1','t2','t3','t4'],bipartite=1)
g.add_edges_from([('s1','t1'),('s1','t4'),('s2','t1'),('s2','t2'),('s3','t1'),('s3','t4'),('s4','t3'),('s5','t2'),('s5','t3')])
l=bipartite.weighted_projected_graph(g,['s1','s2','s3','s4','s5'])
nx.draw(l, with_labels=True)
plt.show()

节点标签出现，但不出现边权重。如何显示边权重？

Answer 1

我已经修改了您的代码以包含 nx.draw_networkx_edge_labels

import networkx as nx
import matplotlib.pyplot as plt
from networkx.algorithms import bipartite
g=nx.Graph()
g.add_nodes_from(['s1','s2','s3','s4','s5'],bipartite=0)
g.add_nodes_from(['t1','t2','t3','t4'],bipartite=1)
g.add_edges_from([('s1','t1'),('s1','t4'),('s2','t1'),('s2','t2'),('s3','t1'),('s3','t4'),('s4','t3'),('s5','t2'),('s5','t3')])
l=bipartite.weighted_projected_graph(g,['s1','s2','s3','s4','s5'])
pos = nx.spring_layout(l)
nx.draw(l, pos = pos, with_labels=True)
nx.draw_networkx_edge_labels(l, pos)

这可能会显示比您想要的更多。我认为它是为边缘可能具有任意属性的情况而设置的。我认为你想要做的就是定义一切pos，然后：

edge_weights = {(u,v,):d['weight'] for u,v,d in l.edges(data=True)}
nx.draw(l, pos = pos, with_labels=True)
nx.draw_networkx_edge_labels(l,pos,edge_labels=edge_weights)