/*
 *  RapidMiner
 *
 *  Copyright (C) 2001-2014 by RapidMiner and the contributors
 *
 *  Complete list of developers available at our web site:
 *
 *       http://rapidminer.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.operator.preprocessing.sampling;

import java.util.Random;

import com.rapidminer.example.ExampleSet;
import com.rapidminer.example.set.MappedExampleSet;
import com.rapidminer.operator.OperatorDescription;
import com.rapidminer.operator.OperatorException;
import com.rapidminer.operator.validation.IteratingPerformanceAverage;


/**
 * This operator constructs a bootstrapped sample from the given example set. That means
 * that a sampling with replacement will be performed. The usual sample size is the number 
 * of original examples. This operator also offers the possibility to create the inverse
 * example set, i.e. an example set containing all examples which are not part of the 
 * bootstrapped example set. This inverse example set might be used for a bootstrapped
 * validation (together with an {@link IteratingPerformanceAverage} operator.
 * 
 * @author Ingo Mierswa, Martin Scholz
 */
public class Bootstrapping extends AbstractBootstrapping {

    public Bootstrapping(OperatorDescription description) {
        super(description);
    }

    @Override
	public int[] createMapping(ExampleSet exampleSet, int size, Random random) throws OperatorException {
        return MappedExampleSet.createBootstrappingMapping(exampleSet, size, random);
    }   
}