| Interface | Description | 
|---|---|
| EvaluationMonitor<T> | 
| Class | Description | 
|---|---|
| CrossValidationPartitioner<E> | 
 Provides access to training and test partitions for n-fold cross validation. 
 | 
| CrossValidationPartitioner.TrainingSampleStream<E> | 
 The  
TrainingSampleStream which iterates over
 all training elements. | 
| Evaluator<T> | 
 The  
Evaluator is an abstract base class for evaluators. | 
| FMeasure | 
 The  
FMeasure is an utility class for evaluators
 which measure precision, recall and the resulting f-measure. | 
| Mean | 
 Calculates the arithmetic mean of values
 added with the  
Mean.add(double) method. | 
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