1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package org.apache.commons.math.distribution; 19 20 /** 21 * Weibull Distribution. This interface defines the two parameter form of the 22 * distribution as defined by 23 * <a href="http://mathworld.wolfram.com/WeibullDistribution.html"> 24 * Weibull Distribution</a>, equations (1) and (2). 25 * 26 * <p> 27 * References: 28 * <ul> 29 * <li><a href="http://mathworld.wolfram.com/WeibullDistribution.html"> 30 * Weibull Distribution</a></li> 31 * </ul> 32 * </p> 33 * 34 * @since 1.1 35 * @version $Revision: 920852 $ $Date: 2010-03-09 13:53:44 +0100 (mar. 09 mars 2010) $ 36 */ 37 public interface WeibullDistribution extends ContinuousDistribution { 38 39 /** 40 * Access the shape parameter. 41 * @return the shape parameter. 42 */ 43 double getShape(); 44 45 /** 46 * Access the scale parameter. 47 * @return the scale parameter. 48 */ 49 double getScale(); 50 51 /** 52 * Modify the shape parameter. 53 * @param alpha The new shape parameter value. 54 * @deprecated as of v2.1 55 */ 56 @Deprecated 57 void setShape(double alpha); 58 59 /** 60 * Modify the scale parameter. 61 * @param beta The new scale parameter value. 62 * @deprecated as of v2.1 63 */ 64 @Deprecated 65 void setScale(double beta); 66 } 67