python画散点图简单示例

#-*- coding:utf-8 -*-
import matplotlib.pyplot as plt

x=range(0,5)
y1=[3,6,6,8,9]
y2=[2,5,5,7,8]
y3=[6,6,8,8,1]
p1=plt.scatter(x,y1,marker='x',color='g',label='1',s=30)
p2=plt.scatter(x,y2,marker='+',color='r',label='2',s=30)
p3=plt.scatter(x,y3,marker='*',color='c',label='3',s=30)
plt.title('Scatter')
plt.legend(loc = 'upper right')
plt.xticks(x)
plt.show()

结果：