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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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package org.apache.commons.math.distribution;
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* The Gamma Distribution.
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* <li><a href="http://mathworld.wolfram.com/GammaDistribution.html">
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* Gamma Distribution</a></li>
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* @version $Revision: 693598 $ $Date: 2008-09-09 16:37:08 -0400 (Tue, 09 Sep 2008) $
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public interface GammaDistribution extends ContinuousDistribution, HasDensity<Double> {
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* Modify the shape parameter, alpha.
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* @param alpha the new shape parameter.
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void setAlpha(double alpha);
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* Access the shape parameter, alpha
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* Modify the scale parameter, beta.
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* @param beta the new scale parameter.
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void setBeta(double beta);
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* Access the scale parameter, beta
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* Return the probability density for a particular point.
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* @param x The point at which the density should be computed.
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* @return The pdf at point x.
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double density(Double x);