00001 /* 00002 * Copyright (c) 2007, DoodleProject 00003 * All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions 00007 * are met: 00008 * 00009 * Redistributions of source code must retain the above copyright 00010 * notice, this list of conditions and the following disclaimer. 00011 * 00012 * Redistributions in binary form must reproduce the above copyright 00013 * notice, this list of conditions and the following disclaimer in 00014 * the documentation and/or other materials provided with the 00015 * distribution. 00016 * 00017 * Neither the name of DoodleProject nor the names of its contributors 00018 * may be used to endorse or promote products derived from this 00019 * software without specific prior written permission. 00020 * 00021 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 00022 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 00023 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 00024 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 00025 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 00026 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00027 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 00028 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 00029 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 00030 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 00031 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 00032 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00033 * SUCH DAMAGE. 00034 */ 00035 00036 #ifndef _NUMERICS4CPP_STATISTICS_DISTRIBUTION_NEGATIVEBINOMIAL_H_ 00037 #define _NUMERICS4CPP_STATISTICS_DISTRIBUTION_NEGATIVEBINOMIAL_H_ 00038 00039 #include "discrete.h" 00040 00041 NUM_NAMESPACE_BEGIN 00042 00060 class negative_binomial_distribution : public discrete_distribution { 00061 00062 public: 00069 negative_binomial_distribution(int r = 1, double p = 0.5); 00070 00076 double cdf(int x) const; 00077 00084 int inverse_cdf(double p) const; 00085 00091 double pmf(int x) const; 00092 00097 int number_of_successes() const; 00098 00103 void number_of_successes(int n); 00104 00109 double probability_of_success() const; 00110 00115 void probability_of_success(double p); 00116 00117 private: 00119 int _number_of_successes; 00120 00122 double _probability_of_success; 00123 }; 00124 00125 NUM_NAMESPACE_END 00126 00127 #endif