我正在用python編寫此公式。 請查看圖片我正在使用以下代碼。 它總是會出錯。

import math

import matplotlib

matplotlib.use('TkAgg')

from pylab import *

import cmath

import networkx as nx

import random as rd

import numpy as np

g=nx.karate_club_graph()

for i in g.nodes_iter():

g.node[i]['theta']=1

a=abs((cmath.exp( (g.node[i]['theta']*(1j)) for i in g.nodes_iter()))/g.number_of_nodes())

我得到以下回溯

runfile('C:/Users/Bhawesh/Desktop/workingdirectory/bookpractice.py', wdir='C:/Users/Bhawesh/Desktop/workingdirectory')

Traceback (most recent call last):

File "", line 1, in

runfile('C:/Users/Bhawesh/Desktop/workingdirectory/bookpractice.py', wdir='C:/Users/Bhawesh/Desktop/workingdirectory')

File "C:\Users\Bhawesh\Anaconda2\lib\site-packages\spyder\utils\site\sitecustomize.py", line 866, in runfile

execfile(filename, namespace)

File "C:\Users\Bhawesh\Anaconda2\lib\site-packages\spyder\utils\site\sitecustomize.py", line 87, in execfile

exec(compile(scripttext, filename, 'exec'), glob, loc)

File "C:/Users/Bhawesh/Desktop/workingdirectory/bookpractice.py", line 20, in

a=abs((cmath.exp( (g.node[i]['theta']*(1j)) for i in g.nodes_iter()))/g.number_of_nodes())

TypeError: a float is required

總結

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