gedi.util.math.stat.kernel.GaussianKernel.java Source code

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Here is the source code for gedi.util.math.stat.kernel.GaussianKernel.java

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/**
 * 
 *    Copyright 2017 Florian Erhard
 *
 *   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 gedi.util.math.stat.kernel;

import org.apache.commons.math3.distribution.NormalDistribution;

public class GaussianKernel extends RealDistributionKernel {

    public GaussianKernel() {
        super(new NormalDistribution(0, 1), 1E-4);
    }

    public GaussianKernel(double sd) {
        super(new NormalDistribution(0, sd), 1E-4);
    }

    public GaussianKernel(double sd, double maxMassOutside) {
        super(new NormalDistribution(0, sd), maxMassOutside);
    }

    public void setParameter(String name, String value) {
        if (name.equals("sd"))
            setSd(Double.parseDouble(value));
        throw new IllegalArgumentException("Parameter " + name + " unknown!");
    }

    public void setSd(double sd) {
        dist = new NormalDistribution(0, sd);
        updateDistribution();
    }

    public double getSd() {
        return ((NormalDistribution) dist).getStandardDeviation();
    }

    public void setParameter(String name, double value) {
        if (name.equals("sd"))
            setSd(value);
        throw new IllegalArgumentException("Parameter " + name + " unknown!");
    }

    public void setParameter(String name, int value) {
        if (name.equals("sd"))
            setSd(value);
        throw new IllegalArgumentException("Parameter " + name + " unknown!");
    }

    private String[] parameterNames = { "sd" };

    public String[] parameterNames() {
        return parameterNames;
    }

    public String getParameter(String name) {
        if (name.equals("sd"))
            return "" + getSd();
        throw new IllegalArgumentException("Parameter " + name + " unknown!");
    }

}