org.jpmml.evaluator

Interface ResultFeature

All Known Subinterfaces:

CategoricalResultFeature, HasAffinity, HasAffinityRanking, HasConfidence, HasDisplayValue, HasEntityAffinity, HasEntityId, HasEntityIdRanking, HasProbability, HasReasonCodeRanking, HasRuleValues

All Known Implementing Classes:

Association, ClusterClassificationMap, EntityClassificationMap, InstanceClassificationMap, NeuronClassificationMap, NodeClassificationMap, NodeScore, ProbabilityClassificationMap, RuleClassificationMap, ScoreClassificationMap, VoteClassificationMap

public interface ResultFeature

If the model does not declare an Output element, or if the declared Output element is incomplete, then it is possible to enhance the evaluation result with proper output fields programmatically.

Every result feature is mapped to a specialized subinterface. A target value may implement any number of subinterfaces. Application developer should use the instanceof type comparison operator to check if the target value implements a particular subinterface or not.

For example, handling the target value of a binary probabilistic classification:

 Object targetValue = result.get(evaluator.getTargetField());

 if(targetValue instanceof HasProbabilities){
   HasProbabilities hasProbabilities = (HasProbabilities)targetValue;

   Double probabilityYes = hasProbabilities.getProbability("yes");
   Double probabilityNo = hasProbabilities.getProbability("no");
 }
 

See Also:

Computable