聚类方法学习（四）层次聚类算法Birch与案例

Birch 简介

详情请参考：https://zhuanlan.zhihu.com/p/22458092

Birch算例

import numpy as np
from sklearn.cluster import Birch
from sklearn.preprocessing import StandardScaler

X = np.random.random((1000, 4))
X = StandardScaler().fit_transform(X)

birch = Birch(n_clusters=5)
y_pred = birch.fit_predict(X)  # 得到分类结果

绘图：

import matplotlib.pyplot as plt

plt.scatter(X[:, 0], X[:, 1], c=y_pred)
plt.show()