python数据可视化学习

import numpy as np

import matplotlib.pyplot as plt

mu = 1000

sigma = 10

x = mu + sigma*np.random.randn(2000)

plt.hist(x,bins=10,color='red',normed=True)

plt.show()

但是图里面没有边框

import numpy as np

import matplotlib.pyplot as plt

mu = 1000

sigma = 10

x = mu + sigma*np.random.randn(2000)

plt.hist(x,bins=10,color='red',normed=True,edgecolor='k')

plt.show()

import numpy as np

import matplotlib.pyplot as plt

x = np.random.randn(1000)+2

y = np.random.randn(1000)+3

plt.hist2d(x,y,bins=40)

plt.show()