二元信息熵 python实现、绘图

import matplotlib.pyplot as plt
from math import log
import numpy as np
#计算二元信息熵
def entropy(props, base=2):
    sum = 0
    for prop in props:
        sum += prop * log(prop, base)
    return sum * -1

#构造数据
x = np.arange(0.01,1,0.01)
props = []
for i in x:
    props.append([i, 1-i])

y = [entropy(i) for i in props]


plt.plot(x,y)
plt.xlabel("p(x)")
plt.ylabel("H(x)")
plt.show()