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Java example source code file (NormalDistribution.java)

This example Java source code file (NormalDistribution.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

distribution, double, jsoncreator, jsonproperty, normaldistribution, override, string

The NormalDistribution.java Java example source code

/*
 *
 *  * Copyright 2015 Skymind,Inc.
 *  *
 *  *    Licensed 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.deeplearning4j.nn.conf.distribution;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;

/**
 * A normal distribution.
 *
 */
public class NormalDistribution extends Distribution {

    private double mean, std;

    /**
     * Create a normal distribution
     * with the given mean and std
     *
     * @param mean the mean
     * @param std  the standard deviation
     */
    @JsonCreator
    public NormalDistribution(@JsonProperty("mean") double mean, @JsonProperty("std") double std) {
        this.mean = mean;
        this.std = std;
    }

    public double getMean() {
        return mean;
    }

    public void setMean(double mean) {
        this.mean = mean;
    }

    public double getStd() {
        return std;
    }

    public void setStd(double std) {
        this.std = std;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        long temp;
        temp = Double.doubleToLongBits(mean);
        result = prime * result + (int) (temp ^ (temp >>> 32));
        temp = Double.doubleToLongBits(std);
        result = prime * result + (int) (temp ^ (temp >>> 32));
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        NormalDistribution other = (NormalDistribution) obj;
        if (Double.doubleToLongBits(mean) != Double
                .doubleToLongBits(other.mean))
            return false;
        if (Double.doubleToLongBits(std) != Double.doubleToLongBits(other.std))
            return false;
        return true;
    }

    public String toString() {
        return "NormalDistribution{" +
                "mean=" + mean +
                ", std=" + std +
                '}';
    }
}

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