| /* |
| * 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.rng.sampling.distribution; |
| |
| import org.apache.commons.rng.UniformRandomProvider; |
| |
| /** |
| * Sampling from a <a href="https://en.wikipedia.org/wiki/Log-normal_distribution"> |
| * log-normal distribution</a>. |
| * Uses {@link BoxMullerNormalizedGaussianSampler} as the underlying sampler. |
| * |
| * @deprecated since 1.1. Please use {@link LogNormalSampler} instead. |
| */ |
| @Deprecated |
| public class BoxMullerLogNormalSampler |
| extends SamplerBase |
| implements ContinuousSampler { |
| /** Delegate. */ |
| private final ContinuousSampler sampler; |
| |
| /** |
| * @param rng Generator of uniformly distributed random numbers. |
| * @param scale Scale of the log-normal distribution. |
| * @param shape Shape of the log-normal distribution. |
| */ |
| public BoxMullerLogNormalSampler(UniformRandomProvider rng, |
| double scale, |
| double shape) { |
| super(null); |
| sampler = new LogNormalSampler(new BoxMullerNormalizedGaussianSampler(rng), |
| scale, shape); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public double sample() { |
| return sampler.sample(); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public String toString() { |
| return sampler.toString(); |
| } |
| } |