| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.ignite.ml.dataset.impl.bootstrapping; |
| |
| import java.io.IOException; |
| import java.io.ObjectInput; |
| import java.io.ObjectOutput; |
| import java.util.Arrays; |
| import org.apache.ignite.ml.math.primitives.vector.Vector; |
| import org.apache.ignite.ml.structures.LabeledVector; |
| |
| /** |
| * Represents vector with repetitions counters for subsamples in bootstrapped dataset. |
| * Each counter shows the number of repetitions of the vector for the n-th sample. |
| */ |
| public class BootstrappedVector extends LabeledVector<Double> { |
| /** Serial version uid. */ |
| private static final long serialVersionUID = -4583008673032917259L; |
| |
| /** Counters show the number of repetitions of the vector for the n-th sample. */ |
| private int[] counters; |
| |
| /** |
| * Creates an instance of BootstrappedVector. |
| * |
| * @param features Features. |
| * @param lb Label. |
| * @param counters Repetitions counters. |
| */ |
| public BootstrappedVector(Vector features, double lb, int[] counters) { |
| super(features, lb); |
| this.counters = counters; |
| } |
| |
| /** |
| * @return Repetitions counters vector. |
| */ |
| public int[] counters() { |
| return counters; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public boolean equals(Object o) { |
| if (this == o) |
| return true; |
| if (o == null || getClass() != o.getClass()) |
| return false; |
| if (!super.equals(o)) |
| return false; |
| BootstrappedVector vector = (BootstrappedVector)o; |
| return Arrays.equals(counters, vector.counters); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public int hashCode() { |
| int res = super.hashCode(); |
| res = 31 * res + Arrays.hashCode(counters); |
| return res; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void writeExternal(ObjectOutput out) throws IOException { |
| super.writeExternal(out); |
| out.writeObject(counters); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException { |
| super.readExternal(in); |
| counters = (int[]) in.readObject(); |
| } |
| } |