DistanceQuery<V, IntegerDistance> query = copacAlgorithm.getPartitionDistanceQuery();
// extract correlation clusters
if(stepprog != null) {
stepprog.beginStep(2, "Extract correlation clusters", logger);
}
SortedMap<Integer, List<Cluster<CorrelationModel<V>>>> clusterMap = extractCorrelationClusters(copacResult, relation, dimensionality);
if(logger.isDebugging()) {
StringBuffer msg = new StringBuffer("Step 2: Extract correlation clusters...");
for(Integer corrDim : clusterMap.keySet()) {