Package weka.classifiers.evaluation

Class AggregateableEvaluation

java.lang.Object

weka.classifiers.evaluation.Evaluation

weka.classifiers.evaluation.AggregateableEvaluation

All Implemented Interfaces:

Serializable, Aggregateable<Evaluation>, RevisionHandler, Summarizable

public class AggregateableEvaluation
extends Evaluation
implements Aggregateable<Evaluation>

Subclass of Evaluation that provides a method for aggregating the results stored in another Evaluation object.

Version:

$Revision: 10153 $

Author:

Mark Hall (mhall{[at]}pentaho{[dot]}com)

See Also:

• Serialized Form

Field Summary

Fields inherited from class weka.classifiers.evaluation.Evaluation

BUILT_IN_EVAL_METRICS

Constructor Summary

Constructors

Constructor	Description
AggregateableEvaluation(Evaluation eval)	Constructs a new AggregateableEvaluation object based on an Evaluation object
AggregateableEvaluation(Instances data)	Constructs a new AggregateableEvaluation object
AggregateableEvaluation(Instances data, CostMatrix costMatrix)	Constructs a new AggregateableEvaluation object

Method Summary

Modifier and Type	Method	Description
AggregateableEvaluation	aggregate(Evaluation evaluation)	Adds the statistics encapsulated in the supplied Evaluation object into this one.
void	finalizeAggregation()	Call to complete the aggregation process.

Methods inherited from class weka.classifiers.evaluation.Evaluation

areaUnderPRC, areaUnderROC, avgCost, confusionMatrix, correct, correlationCoefficient, coverageOfTestCasesByPredictedRegions, crossValidateModel, crossValidateModel, crossValidateModel, equals, errorRate, evaluateModel, evaluateModel, evaluateModel, evaluateModelOnce, evaluateModelOnce, evaluateModelOnce, evaluateModelOnceAndRecordPrediction, evaluateModelOnceAndRecordPrediction, evaluationForSingleInstance, falseNegativeRate, falseNegativeRate, falsePositiveRate, falsePositiveRate, fMeasure, fMeasure, getAllEvaluationMetricNames, getClassPriors, getDiscardPredictions, getHeader, getMetricsToDisplay, getPluginMetric, getPluginMetrics, getRevision, incorrect, kappa, KBInformation, KBMeanInformation, KBRelativeInformation, main, matthewsCorrelationCoefficient, matthewsCorrelationCoefficient, meanAbsoluteError, meanPriorAbsoluteError, missingClass, numClassified, numFalseNegatives, numFalsePositives, numInstances, numNegatives, numPositives, numPredictedNegatives, numPredictedPositives, numTrueNegatives, numTruePositives, pctCorrect, pctIncorrect, pctUnclassified, precision, predictedClassCounts, predictions, priorEntropy, recall, relativeAbsoluteError, rootMeanPriorSquaredError, rootMeanSquaredError, rootRelativeSquaredError, setDiscardPredictions, setMetricsToDisplay, setPriors, SFEntropyGain, SFMeanEntropyGain, SFMeanPriorEntropy, SFMeanSchemeEntropy, SFPriorEntropy, SFSchemeEntropy, sizeOfPredictedRegions, toClassDetailsString, toClassDetailsString, toCumulativeMarginDistributionString, toggleEvalMetrics, toMatrixString, toMatrixString, toSummaryString, toSummaryString, toSummaryString, totalCost, trueClassCounts, trueNegativeRate, trueNegativeRate, truePositiveRate, truePositiveRate, unclassified, unweightedMacroFmeasure, unweightedMicroFmeasure, updatePriors, useNoPriors, weightedAreaUnderPRC, weightedAreaUnderROC, weightedFalseNegativeRate, weightedFalsePositiveRate, weightedFMeasure, weightedMatthewsCorrelation, weightedPrecision, weightedRecall, weightedTrueNegativeRate, weightedTruePositiveRate, wekaStaticWrapper, withClass

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

AggregateableEvaluation

public AggregateableEvaluation(Instances data)
                        throws Exception

Constructs a new AggregateableEvaluation object

Parameters:

data - the Instances to use

Throws:

Exception - if a problem occurs

AggregateableEvaluation

public AggregateableEvaluation(Instances data,
 CostMatrix costMatrix)
                        throws Exception

Constructs a new AggregateableEvaluation object

Parameters:

data - the Instances to use

costMatrix - the cost matrix to use

Throws:

Exception - if a problem occurs

AggregateableEvaluation

public AggregateableEvaluation(Evaluation eval)
                        throws Exception

Constructs a new AggregateableEvaluation object based on an Evaluation object

Parameters:

eval - the Evaluation object to use

Throws:

Exception

Method Details

aggregate

public AggregateableEvaluation aggregate(Evaluation evaluation)

Adds the statistics encapsulated in the supplied Evaluation object into this one. Does not perform any checks for compatibility between the supplied Evaluation object and this one.

Specified by:

aggregate in interface Aggregateable<Evaluation>

Parameters:

evaluation - the evaluation object to aggregate

Returns:

the result of aggregation

finalizeAggregation

public void finalizeAggregation()

Description copied from interface: Aggregateable

Call to complete the aggregation process. Allows implementers to do any final processing based on how many objects were aggregated.

Specified by:

finalizeAggregation in interface Aggregateable<Evaluation>