擅长:python、mysql、java
<p>您可以始终使用来自IPython小部件的交互</p>
<pre class="lang-py prettyprint-override"><code>from IPython.html.widgets import *
import numpy as np
import matplotlib.pyplot as plt
import math
def linear(w,x,b):
return w*x + b
def logistic(z):
return 1/(1+math.e**(-z))
def plt_logistic(a, b):
x = np.linspace(-20,20, 100)
h = linear(a,x,b)
y = logistic(h)
plt.ylim(-5,5)
plt.xlim(-5,5)
plt.plot(x,h)
plt.plot(x,y)
plt.grid()
plt.show()
interact(plt_logistic, a = (-10,10,0.1), b = (-10,10,0.1))
</code></pre>
<p><a href="https://i.stack.imgur.com/Fzr5Z.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Fzr5Z.png" alt="enter image description here"/></a></p>