/**
* Recalculates the centroid if any data point was added or removed to this cluster in the last
* iteration of kmeans.
*/
public void updateCentroid() {
if (changed_ == false || dpoints_.size() == 0) {
return;
}
super.calculateCentroid();
changed_ = false;
}
/**
* Creates a new instance of a partitional cluster given a list of data points.
*
* @param dpoints List of data points that will become members of this cluster.
*/
public PartitionalCluster(ArrayList<DataPoint> dpoints) {
dpoints_ = dpoints;
changed_ = false;
super.calculateCentroid();
}
