/**
* Returns the number of objects in the subtree including the objects at the current node. Note
* that objects can occur more than once and are counted as such. To get the number of distinct
* objects use the getObjectsInSubtree function first and use the resulting list to calculate the
* number of distinct objects.
*
* @return number of objects
*/
public int getNumberOfExamplesInSubtree() {
int subtreeSum = 0;
for (HierarchicalClusterNode subNode : subNodes) {
subtreeSum += subNode.getNumberOfExamplesInSubtree();
}
return subtreeSum;
}
