networkx 环形图

#环形图显示
import networkx as nx

G = nx.Graph()

#构建df_table
edge_lis=[]

for i in range(m.shape[0]):
    for j in range(m.shape[0]):
        if m[i][j]>0.5:
            edge_lis.append([i,j])

rraw_edges= edge_lis

source_list=[]  #边的起始节点
target_list=[]  #边的终点

for m in range(0,len(rraw_edges)):
# for m in range(0,1):
     subject_edge=rraw_edges[m]
     source_list.append(subject_edge[0])
     target_list.append(subject_edge[1])

# source_list=list(itertools.chain.from_iterable(source_list))
# target_list=list(itertools.chain.from_iterable(target_list))

# print(len(source_list))
# print('
')
# print(len(target_list))
# print('
')

df_table = pd.DataFrame(
    {"source": source_list, "target": target_list}
)


df_table['C'] = [ 1 for i in range(len(df_table['source']))]
print(df_table)

G = nx.from_pandas_edgelist(df_table, source = 'source', target = 'target', edge_attr = 'C', create_using = nx.DiGraph())

nx.draw(G,
        pos = nx.circular_layout(G),
        node_color = 'b',
        edge_color = 'green',
        with_labels = True,
        font_size =10,
        node_size =20)
plt.show()