001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.commons.math3.ml.distance;
018
019import org.apache.commons.math3.exception.DimensionMismatchException;
020import org.apache.commons.math3.util.MathArrays;
021
022/**
023 * Calculates the L<sub>&infin;</sub> (max of abs) distance between two points.
024 *
025 * @since 3.2
026 */
027public class ChebyshevDistance implements DistanceMeasure {
028
029    /** Serializable version identifier. */
030    private static final long serialVersionUID = -4694868171115238296L;
031
032    /** {@inheritDoc} */
033    public double compute(double[] a, double[] b)
034    throws DimensionMismatchException {
035        return MathArrays.distanceInf(a, b);
036    }
037
038}