K-邻近算法简单例子

from numpy import *

import operator

import matplotlib.pyplot as plt

def creatDataset():

    group = array([[1.0,1.1],[1.0,1.0],[0,0],[0,0.1]])

    lables =['A','A','B','B']

    return group,lables

group,lables = creatDataset()

print(group,lables)

datingDataMat = group

fig = plt.figure()

ax = fig.add_subplot(111)

ax.scatter(datingDataMat[:,1],datingDataMat[:,0])

plt.show()

　　

运行结果