/*
* RapidMiner
*
* Copyright (C) 2001-2008 by Rapid-I and the contributors
*
* Complete list of developers available at our web site:
*
* http://rapid-i.com
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see http://www.gnu.org/licenses/.
*/
package com.rapidminer.example.set;
import com.rapidminer.example.Example;
import com.rapidminer.example.ExampleSet;
/**
* This subclass of {@link Condition} serves to exclude examples with known
* labels from an example set.
*
* @author Ingo Mierswa
* @version $Id: MissingLabelsCondition.java,v 2.2 2006/03/21 15:35:39
* ingomierswa Exp $
*/
public class MissingLabelsCondition implements Condition {
private static final long serialVersionUID = 6559275828082706521L;
/**
* Throws an exception since a parameter string is not allowed for this
* condition.
*/
public MissingLabelsCondition(ExampleSet exampleSet, String parameterString) {
if ((parameterString != null) && (parameterString.trim().length() != 0))
throw new IllegalArgumentException("MissingLabelsCondition does not need any parameters!");
}
/**
* Since the condition cannot be altered after creation we can just return
* the condition object itself.
*
* @deprecated Conditions should not be able to be changed dynamically and hence there is no need for a copy
*/
@Deprecated
public Condition duplicate() {
return this;
}
/** Returns true if the label was not defined. */
public boolean conditionOk(Example example) {
if (Double.isNaN(example.getValue(example.getAttributes().getLabel())))
return true;
else
return false;
}
}