00001 /* 00002 * Copyright (c) 2005, 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_CAUCHY_H_ 00037 #define _NUMERICS4CPP_STATISTICS_DISTRIBUTION_CAUCHY_H_ 00038 00039 #include "continuous.h" 00040 00041 NUM_NAMESPACE_BEGIN 00042 00060 class cauchy_distribution : public continuous_distribution { 00061 00062 public: 00068 cauchy_distribution(double location = 1.0, double scale = 1.0); 00069 00075 double cdf(double x) const; 00076 00083 double inverse_cdf(double p) const; 00084 00089 double median() const; 00090 00095 void median(double m); 00096 00101 double scale() const; 00102 00107 void scale(double s); 00108 00109 private: 00111 double _median; 00112 00114 double _scale; 00115 }; 00116 00117 NUM_NAMESPACE_END 00118 00119 #endif