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     * Weibull Distribution.  This interface defines the two parameter form of the
022     * distribution as defined by
023     * <a href="http://mathworld.wolfram.com/WeibullDistribution.html">
024     * Weibull Distribution</a>, equations (1) and (2).
025     *
026     * <p>
027     * References:
028     * <ul>
029     * <li><a href="http://mathworld.wolfram.com/WeibullDistribution.html">
030     * Weibull Distribution</a></li>
031     * </ul>
032     * </p>
033     *
034     * @since 1.1
035     * @version $Id: WeibullDistribution.java 1131229 2011-06-03 20:49:25Z luc $
036     */
037    public interface WeibullDistribution extends ContinuousDistribution {
038        /**
039         * Access the shape parameter.
040         *
041         * @return the shape parameter.
042         */
043        double getShape();
044    
045        /**
046         * Access the scale parameter.
047         *
048         * @return the scale parameter.
049         */
050        double getScale();
051    }