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Provides common utility functions

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/*
 * Copyright (c) CQSE GmbH
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.conqat.lib.commons.math;

/**
 * Minimum aggregator.
 * 
 * @author deissenb
 */
public class MinAggregator extends PairwiseAggregatorBase {

	/** Returns {@link Double#POSITIVE_INFINITY}. */
	@Override
	public double getNeutralElement() {
		return Double.POSITIVE_INFINITY;
	}

	/** {@inheritDoc} */
	@Override
	protected double aggregate(double aggregate, double value) {
		return Math.min(aggregate, value);
	}
}