| AbstractCategoricalSummaryStatistic | 
 Ancestor for summary statistics that work with numeric predictions. 
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| AbstractGeneralSummaryStatistic | 
 Ancestor for statistics that can be applied to numeric and categorical
 predictions. 
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| AbstractNumericSummaryStatistic | 
 Ancestor for summary statistics that work with numeric predictions. 
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| AbstractSummaryStatistic | 
 Ancestor for summary statistics. 
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| Accuracy | 
 Calculates the accuracy (aka correct percentage). 
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| CorrelationCoefficient | 
 Calculates the correlation coefficient. 
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| MeanAbsoluteError | 
 Calculates the MAE. 
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| NoPrediction | 
 Calculates the rows with no prediction. 
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| PredictionHelper | 
 Helper class for predictions. 
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| RootMeanSquaredError | 
 Calculates the RMSE. 
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