001/*
002 * Copyright (c) 2015-2020, Oracle and/or its affiliates. All rights reserved.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.tribuo.math.util;
018
019import java.io.Serializable;
020
021/**
022 * A functional interface that generates a normalized version of a double array.
023 */
024public interface VectorNormalizer extends Serializable {
025
026    /**
027     * Normalizes the input array in some fashion specified by the class.
028     * @param input The input to normalize.
029     * @return The normalized array.
030     */
031    public double[] normalize(double[] input);
032
033}