001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    
018    package org.apache.commons.math.distribution;
019    
020    /**
021     * Cauchy Distribution.
022     *
023     * <p>
024     * References:
025     * <ul>
026     * <li><a href="http://mathworld.wolfram.com/CauchyDistribution.html">
027     * Cauchy Distribution</a></li>
028     * </ul>
029     * </p>
030     *
031     * @since 1.1
032     * @version $Revision: 670469 $ $Date: 2008-06-23 04:01:38 -0400 (Mon, 23 Jun 2008) $
033     */
034    public interface CauchyDistribution extends ContinuousDistribution {
035        
036        /**
037         * Access the median.
038         * @return median for this distribution
039         */
040        double getMedian();
041        
042        /**
043         * Access the scale parameter.
044         * @return scale parameter for this distribution
045         */
046        double getScale();
047        
048        /**
049         * Modify the median.
050         * @param median for this distribution
051         */
052        void setMedian(double median);
053        
054        /**
055         * Modify the scale parameter.
056         * @param s scale parameter for this distribution
057         */
058        void setScale(double s);
059    }