Xs_55555的博客

欧式距离、曼哈顿距离、余弦距离 import numpy as np import math def Euclidean(vec1, vec2): npvec1, npvec2 = np.array(vec1), np.array(vec2) diff = npvec1 - npvec2 powdistance = np.power(diff, 2).sum() ...

KMeans 非skleran 的实现代码     # -*- coding: utf-8 -*- """ Created on Thu May 10 10:12:53 2018 @author: lizihua """ from numpy import * import matplotlib.pyplot as plt # 加载数据 def loadDataSet(fileName...

 下面是sklearn 关于knn的代码   import numpy as np import matplotlib.pyplot as plt from matplotlib.colors import ListedColormap from sklearn import neighbors, datasets n_neighbors = 15 iris = datasets.loa...