import numpy as np
import matplotlib.pyplot as plt
# Fixing random state for reproducibility
np.random.seed(19680801)
plt.title('My second Python plot: my studing time per day in a week, wenjuan.23')
plt.xlabel('Day')
plt.ylabel('study time (h)')
N = 7
x = np.array(['Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'])
y = np.array([13,9,11,13,12,8,11])
colors = np.random.rand(N)
area = (30 * np.random.rand(N))**2 # 0 to 15 point radii
plt.scatter(x, y, s=area, c=colors, alpha=0.5)
plt.show()
标签：rand,有意思,plt,random,13,np,array From： https://www.cnblogs.com/latent-Lin/p/17797974.html