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我正在使用DBSCAN对集群后的数据进行集群,对于每个集群我想要获取核心点的数据属性值,有没有办法做到这一点?weka DBSCAN集群,如何获得核心点
private static void ClusteringDemo(String filename) throws Exception {
ClusterEvaluation eval;
Instances data;
DBSCAN cl;
data = DataSource.read(filename);
// manual call
cl = new DBSCAN();
cl.setMinPoints(6);
cl.setEpsilon(0.05);
cl.buildClusterer(data);
eval = new ClusterEvaluation();
eval.setClusterer(cl);
eval.evaluateClusterer(new Instances(data));
System.out.println(eval.clusterResultsToString());
//setup visualization
PlotData2D predData = ClustererPanel.setUpVisualizableInstances(data, eval);
VisualizePanel vp = new VisualizePanel();
vp.addPlot(predData);
// display data
JFrame jf = new JFrame("Weka Clusterer Visualize: " + vp.getName());
jf.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
jf.setSize(500, 400);
jf.getContentPane().setLayout(new BorderLayout());
jf.getContentPane().add(vp, BorderLayout.CENTER);
jf.setVisible(true);
}
cl是DBSCAN类,我只实现可视化。任何人都可以教我如何获得核心价值?