@Override
public MetaData getGeneratedMetaData() throws OperatorException {
ExampleSetMetaData emd = new ExampleSetMetaData();
AttributeMetaData amd = new AttributeMetaData("label", Ontology.NOMINAL, Attributes.LABEL_NAME);
emd.addAttribute(amd);
int desirendNumberOfAttributes = getParameterAsInt(PARAMETER_NUMBER_ATTRIBUTES);
double mean = getParameterAsDouble(PARAMETER_SPARSE_FRACTION);
if (desirendNumberOfAttributes > 20) {
emd.attributesAreSuperset();
// first ten
for (int i = 1; i < 11; i++) {
AttributeMetaData newAMD = new AttributeMetaData("att" + i, Ontology.REAL);
newAMD.setValueRange(new Range(0, 1), SetRelation.EQUAL);
newAMD.setMean(new MDReal(mean));
emd.addAttribute(newAMD);
}
// last ten
for (int i = desirendNumberOfAttributes - 10; i <= desirendNumberOfAttributes; i++) {
AttributeMetaData newAMD = new AttributeMetaData("att" + i, Ontology.REAL);
newAMD.setValueRange(new Range(0, 1), SetRelation.EQUAL);
newAMD.setMean(new MDReal(mean));
emd.addAttribute(newAMD);
}
} else {
for (int i = 0; i < desirendNumberOfAttributes; i++) {
AttributeMetaData newAMD = new AttributeMetaData("att" + (i + 1), Ontology.REAL);
newAMD.setValueRange(new Range(0, 1), SetRelation.EQUAL);
newAMD.setMean(new MDReal(mean));
emd.addAttribute(newAMD);
}
}
return emd;
}
public ProcessLog2ExampleSet(OperatorDescription description) {
super(description);
ExampleSetMetaData newEMD = new ExampleSetMetaData();
newEMD.attributesAreSuperset();
newEMD.setNumberOfExamples(0);
newEMD.getNumberOfExamples().increaseByUnknownAmount();
getTransformer().addRule(new GenerateNewMDRule(exampleSetOutput, newEMD));
dummyPorts.start();
getTransformer().addRule(dummyPorts.makePassThroughRule());
}