Example usage for org.apache.commons.math3.stat.clustering Cluster getPoints

Introduction

In this page you can find the example usage for org.apache.commons.math3.stat.clustering Cluster getPoints.

Prototype

public List<T> getPoints() 

Source Link

Document

Get the points contained in the cluster.

Usage

From source file:org.moeaframework.core.operator.real.AdaptiveMetropolisTest.java

/**
 * Returns the covariance matrix for the specified cluster.
 * /*from w w w.ja va2 s. co m*/
 * @param cluster the cluster
 * @return the covariance matrix for the specified cluster
 */
private RealMatrix getCovariance(Cluster<ClusterablePoint> cluster) {
    List<ClusterablePoint> points = cluster.getPoints();
    RealMatrix rm = MatrixUtils.createRealMatrix(points.size(), 2);

    for (int i = 0; i < points.size(); i++) {
        rm.setRow(i, points.get(i).getPoint());
    }

    return new Covariance(rm).getCovarianceMatrix();
}

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