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Java example source code file (RandomKeyMutation.java)
The RandomKeyMutation.java Java example source code/* * 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.commons.math3.genetics; import java.util.ArrayList; import java.util.List; import org.apache.commons.math3.exception.MathIllegalArgumentException; import org.apache.commons.math3.exception.util.LocalizedFormats; /** * Mutation operator for {@link RandomKey}s. Changes a randomly chosen element * of the array representation to a random value uniformly distributed in [0,1]. * * @since 2.0 */ public class RandomKeyMutation implements MutationPolicy { /** * {@inheritDoc} * * @throws MathIllegalArgumentException if <code>original is not a {@link RandomKey} instance */ public Chromosome mutate(final Chromosome original) throws MathIllegalArgumentException { if (!(original instanceof RandomKey<?>)) { throw new MathIllegalArgumentException(LocalizedFormats.RANDOMKEY_MUTATION_WRONG_CLASS, original.getClass().getSimpleName()); } RandomKey<?> originalRk = (RandomKey) original; List<Double> repr = originalRk.getRepresentation(); int rInd = GeneticAlgorithm.getRandomGenerator().nextInt(repr.size()); List<Double> newRepr = new ArrayList Other Java examples (source code examples)Here is a short list of links related to this Java RandomKeyMutation.java source code file: |
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