二維線性不可分

kernel_method.py

import numpy as np
import matplotlib.pyplot as plt

# https://openhome.cc/Gossip/DCHardWay/ab.csv
data = np.loadtxt('ab.csv', delimiter=',')

a = data[:,0]
b = data[:,1]
label = data[:,2]

zero = label == 0
one = label == 1

plt.xlabel('a') 
plt.ylabel('b')
plt.gca().set_aspect(1)
plt.scatter(a[zero], b[zero], marker = 'o')
plt.scatter(a[one], b[one], marker = 'x')

plt.show()