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import matplotlib
import matplotlib.pyplot as plt
def file2matrix(filename):
......
return returnMat,classLabelVector
datingDataMat,datingLabels = file2matrix('datingTestSet2.txt')
fig = plt.figure()
ax = fig.add_subpot(111)
ax.scatter(datingDataMat[:,1],datingDataMat[:,2])
plt.show()
ax.scatter(datingDataMat[:,1],datingDataMat[:,2],15.0*array(datingLabels),15.0*array(datingLabels)) plt.show()
import numpy as np ...... datingLabels = array(datingLabels) idx_1 = np.where(datingLabels==1) p1 = ax.scatter(datingDataMat[idx_1,0],datingDataMat[idx_1:,1],market = '*',color = 'r',label='1',s=20 idx_2 = np.where(datingLabels==2) p2 = ax.scatter(datingDataMat[idx_2,0],datingDataMat[idx_2:,1],market = 'o',color ='b',label='1',s=10 idx_3 = np.where(datingLabels==3) p3 = ax.scatter(datingDataMat[idx_3,0],datingDataMat[idx_3:,1],market = '+',color ='g',label='1',s=30 plt.legend(loc = 'upper right') plt.show()
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