1dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond/* 2dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * Licensed to the Apache Software Foundation (ASF) under one or more 3dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * contributor license agreements. See the NOTICE file distributed with 4dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * this work for additional information regarding copyright ownership. 5dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * The ASF licenses this file to You under the Apache License, Version 2.0 6dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * (the "License"); you may not use this file except in compliance with 7dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * the License. You may obtain a copy of the License at 8dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * 9dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * http://www.apache.org/licenses/LICENSE-2.0 10dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * 11dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * Unless required by applicable law or agreed to in writing, software 12dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * distributed under the License is distributed on an "AS IS" BASIS, 13dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * See the License for the specific language governing permissions and 15dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * limitations under the License. 16dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond */ 17dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond 18dee0849a9704d532af0b550146cbafbaa6ee1d19Raymondpackage org.apache.commons.math.distribution; 19dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond 20dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond/** 21dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * Normal (Gauss) Distribution. 22dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * 23dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * <p> 24dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * References:</p><p> 25dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * <ul> 26dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * <li><a href="http://mathworld.wolfram.com/NormalDistribution.html"> 27dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * Normal Distribution</a></li> 28dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * </ul> 29dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * </p> 30dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * 31dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * @version $Revision: 920852 $ $Date: 2010-03-09 13:53:44 +0100 (mar. 09 mars 2010) $ 32dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond */ 33dee0849a9704d532af0b550146cbafbaa6ee1d19Raymondpublic interface NormalDistribution extends ContinuousDistribution, HasDensity<Double> { 34dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond /** 35dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * Access the mean. 36dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * @return mean for this distribution 37dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond */ 38dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond double getMean(); 39dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond /** 40dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * Modify the mean. 41dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * @param mean for this distribution 42dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * @deprecated as of v2.1 43dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond */ 44dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond @Deprecated 45dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond void setMean(double mean); 46dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond /** 47dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * Access the standard deviation. 48dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * @return standard deviation for this distribution 49dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond */ 50dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond double getStandardDeviation(); 51dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond /** 52dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * Modify the standard deviation. 53dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * @param sd standard deviation for this distribution 54dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * @deprecated as of v2.1 55dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond */ 56dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond @Deprecated 57dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond void setStandardDeviation(double sd); 58dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond 59dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond /** 60dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * Return the probability density for a particular point. 61dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * @param x The point at which the density should be computed. 62dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond * @return The pdf at point x. 63dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond */ 64dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond double density(Double x); 65dee0849a9704d532af0b550146cbafbaa6ee1d19Raymond} 66