Python画图高斯分布的示例


						如下所示：





import matplotlib.pyplot as plt

import numpy as np

import math

def gaussian(sigma, x, u):

	y = np.exp(-(x - u) ** 2 / (2 * sigma ** 2)) / (sigma * math.sqrt(2 * math.pi))

	return y

#x = np.linspace(220, 230, 10000)

x = np.linspace(-800, 800, 10000)

 

plt.title('PDF in Horizontal Direction', fontsize=22)

plt.xticks(fontsize=22)

plt.yticks(fontsize=22)

axes = plt.subplot(111)

axes.set_xticks([-800,-400,0,400,800])

axes.set_yticks([0,0.001,0.002,0.0030])

plt.plot(x, gaussian(120, x, 0), "b-", linewidth=6)

plt.show()





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