| Package | Description | 
|---|---|
| org.hipparchus.clustering | 
 Clustering algorithms. 
 | 
| org.hipparchus.clustering.evaluation | 
 Cluster evaluation methods. 
 | 
| Modifier and Type | Method | Description | 
|---|---|---|
ClusterEvaluator<T> | 
MultiKMeansPlusPlusClusterer.getClusterEvaluator() | 
 Returns the  
ClusterEvaluator used to determine the "best" clustering. | 
| Constructor | Description | 
|---|---|
MultiKMeansPlusPlusClusterer(KMeansPlusPlusClusterer<T> clusterer,
                            int numTrials,
                            ClusterEvaluator<T> evaluator) | 
 Build a clusterer. 
 | 
| Modifier and Type | Class | Description | 
|---|---|---|
class  | 
SumOfClusterVariances<T extends Clusterable> | 
 Computes the sum of intra-cluster distance variances according to the formula:
 \] score = \sum\limits_{i=1}^n \sigma_i^2 \]
 where n is the number of clusters and \( \sigma_i^2 \) is the variance of
 intra-cluster distances of cluster \( c_i \). 
 | 
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