@Override
public void setParameter(String name, Object object) throws OperatorException {
if (name.equals("proportion_threshold")) {
String value = (String) object;
try {
this.setVarianceThreshold(Double.parseDouble(value));
} catch (NumberFormatException error) {
super.setParameter(name, value);
}
} else if (name.equals("number_of_components")) {
String value = (String) object;
try {
this.setNumberOfComponents(Integer.parseInt(value));
} catch (NumberFormatException error) {
super.setParameter(name, value);
}
} else if (name.equals("keep_attributes")) {
String value = (String) object;
keepAttributes = false;
if (value.equals("true")) {
keepAttributes = true;
}
} else {
super.setParameter(name, object);
}
}
/**
* Helper wrapper for {@link #exampleSetInput that can be called by other operators to apply
* this operator when it is created anonymously.
*/
public ExampleSet doWork(ExampleSet exampleSet) throws OperatorException {
ExampleSet workingSet =
(isSupportingAttributeRoles())
? getSelectedAttributes(exampleSet)
: new NonSpecialAttributesExampleSet(getSelectedAttributes(exampleSet));
AbstractModel model = createPreprocessingModel(workingSet);
model.setParameter(PARAMETER_CREATE_VIEW, getParameterAsBoolean(PARAMETER_CREATE_VIEW));
model.setOperator(this);
return model.apply(exampleSet);
}
@Override
public final ExampleSet apply(ExampleSet exampleSet) throws OperatorException {
ExampleSet workingSet =
(isSupportingAttributeRoles())
? getSelectedAttributes(exampleSet)
: new NonSpecialAttributesExampleSet(getSelectedAttributes(exampleSet));
AbstractModel model = createPreprocessingModel(workingSet);
model.setParameter(PARAMETER_CREATE_VIEW, getParameterAsBoolean(PARAMETER_CREATE_VIEW));
if (getExampleSetOutputPort().isConnected()) {
model.setOperator(this);
exampleSet = model.apply(exampleSet);
model.setOperator(null);
}
modelOutput.deliver(model);
return exampleSet;
}
