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;
020import java.util.Arrays;
021
022/**
023 * NoopNormalizer returns a copy of the input, without normalizing it.
024 */
025public class NoopNormalizer implements VectorNormalizer, Serializable {
026    private static final long serialVersionUID = 1L;
027
028    @Override
029    public double[] normalize(double[] input) {
030        return Arrays.copyOf(input,input.length);
031    }
032
033}