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Diffstat (limited to 'src/main/java/org/apache/commons/math/distribution/BetaDistribution.java')
-rw-r--r-- | src/main/java/org/apache/commons/math/distribution/BetaDistribution.java | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/src/main/java/org/apache/commons/math/distribution/BetaDistribution.java b/src/main/java/org/apache/commons/math/distribution/BetaDistribution.java new file mode 100644 index 0000000..7693b04 --- /dev/null +++ b/src/main/java/org/apache/commons/math/distribution/BetaDistribution.java @@ -0,0 +1,65 @@ +/* + * 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.math.distribution; + +import org.apache.commons.math.MathException; + +/** + * Computes the cumulative, inverse cumulative and density functions for the beta distribuiton. + * + * @see <a href="http://en.wikipedia.org/wiki/Beta_distribution">Beta_distribution</a> + * @version $Revision: 920852 $ $Date: 2010-03-09 13:53:44 +0100 (mar. 09 mars 2010) $ + * @since 2.0 + */ +public interface BetaDistribution extends ContinuousDistribution, HasDensity<Double> { + /** + * Modify the shape parameter, alpha. + * @param alpha the new shape parameter. + * @deprecated as of 2.1 + */ + @Deprecated + void setAlpha(double alpha); + + /** + * Access the shape parameter, alpha + * @return alpha. + */ + double getAlpha(); + + /** + * Modify the shape parameter, beta. + * @param beta the new scale parameter. + * @deprecated as of 2.1 + */ + @Deprecated + void setBeta(double beta); + + /** + * Access the shape parameter, beta + * @return beta. + */ + double getBeta(); + + /** + * Return the probability density for a particular point. + * @param x The point at which the density should be computed. + * @return The pdf at point x. + * @exception MathException if probability density cannot be computed + */ + double density(Double x) throws MathException; + +} |