sklearn 聚类代码
时间: 2023-11-28 18:05:27 浏览: 75
sklearn提供了多种聚类算法,包括MeanShift、DBSCAN、SpectralBiclustering和GaussianMixture等。下面是一些示例代码:
1. 使用MeanShift聚类算法:
```python
from sklearn.cluster import MeanShift
cluster = MeanShift(n_jobs=-1)
model = cluster.fit(features_std)
```
其中,`features_std`是输入的特征数据。
2. 使用DBSCAN聚类算法:
```python
from sklearn.cluster import DBSCAN
cluster = DBSCAN()
model = cluster.fit(X)
```
其中,`X`是输入的特征数据。
3. 使用SpectralBiclustering双向聚类算法:
```python
from sklearn.cluster import SpectralBiclustering
import matplotlib.pyplot as plt
model = SpectralBiclustering(n_clusters=2).fit(Xn)
y_pred = model.row_labels_
plt.figure('SpectralBiclustering', facecolor='lightgray')
plt.title('SpectralBiclustering', fontsize=16)
plt.tick_params(labelsize=10)
plt.scatter(Xn[:, 0], Xn[:, 1], s=80, c=y_pred, cmap='brg', label='Samples')
plt.legend()
plt.show()
```
其中,`Xn`是输入的特征数据。
4. 使用GaussianMixture高斯混合模型聚类算法:
```python
from sklearn.mixture import GaussianMixture
import matplotlib.pyplot as plt
model = GaussianMixture(n_components=3)
y_pred = model.fit_predict(Xn)
plt.figure('GMM', facecolor='lightgray')
plt.title('GMM', fontsize=16)
plt.tick_params(labelsize=10)
plt.scatter(Xn[:, 0], Xn[:, 1], s=80, c=y_pred, cmap='brg', label='Samples')
plt.legend()
plt.show()
```
其中,`Xn`是输入的特征数据。
请注意,以上代码只是示例,具体的使用需根据实际情况进行适当调整。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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