    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 $Revision: 920852 $ $Date: 2010-03-09 13:53:44 +0100 (mar. 09 mars 2010) $
    036     */
    037    public interface WeibullDistribution extends ContinuousDistribution {
    038
    039        /**
    040         * Access the shape parameter.
    041         * @return the shape parameter.
    042         */
    043        double getShape();
    044
    045        /**
    046         * Access the scale parameter.
    047         * @return the scale parameter.
    048         */
    049        double getScale();
    050
    051        /**
    052         * Modify the shape parameter.
    053         * @param alpha The new shape parameter value.
    054         * @deprecated as of v2.1
    055         */
    056        @Deprecated
    057        void setShape(double alpha);
    058
    059        /**
    060         * Modify the scale parameter.
    061         * @param beta The new scale parameter value.
    062         * @deprecated as of v2.1
    063         */
    064        @Deprecated
    065        void setScale(double beta);
    066    }