PLearn 0.1
ConditionalGaussianDistribution.h
Go to the documentation of this file.
00001 
00002 
00003 // -*- C++ -*-
00004 
00005 // ConditionalGaussianDistribution.h
00006 // 
00007 // Copyright (C) *YEAR* *AUTHOR(S)* 
00008 // ...
00009 // Copyright (C) *YEAR* *AUTHOR(S)* 
00010 // 
00011 // Redistribution and use in source and binary forms, with or without
00012 // modification, are permitted provided that the following conditions are met:
00013 // 
00014 //  1. Redistributions of source code must retain the above copyright
00015 //     notice, this list of conditions and the following disclaimer.
00016 // 
00017 //  2. Redistributions in binary form must reproduce the above copyright
00018 //     notice, this list of conditions and the following disclaimer in the
00019 //     documentation and/or other materials provided with the distribution.
00020 // 
00021 //  3. The name of the authors may not be used to endorse or promote
00022 //     products derived from this software without specific prior written
00023 //     permission.
00024 // 
00025 // THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
00026 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00027 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
00028 // NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00029 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
00030 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00031 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00032 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00033 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00034 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00035 // 
00036 // This file is part of the PLearn library. For more information on the PLearn
00037 // library, go to the PLearn Web site at www.plearn.org
00038 
00039 #ifndef ConditionalGaussianDistribution_INC
00040 #define ConditionalGaussianDistribution_INC
00041 
00042 #include "ConditionalDistribution.h"
00043 
00044 namespace PLearn {
00045 using namespace std;
00046 
00047 class ConditionalGaussianDistribution: public ConditionalDistribution
00048 {
00049 
00050 public:
00051 
00052     Vec mean;
00053     Mat covariance;
00054   
00055     typedef ConditionalDistribution inherited;
00056 
00057     ConditionalGaussianDistribution();
00058 
00059 
00060 protected: 
00061 
00062     static void declareOptions(OptionList& ol);
00063 
00064 public:
00065     // simply calls inherited::build() then build_() 
00066     virtual void build();
00067 
00069     virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies);
00070 
00072     PLEARN_DECLARE_OBJECT(ConditionalGaussianDistribution);
00073 
00074 
00076     virtual void train(VMat training_set); 
00077 
00079     virtual double log_density(const Vec& x) const;
00080 
00083     virtual double density(const Vec& x) const;
00084   
00086     virtual double survival_fn(const Vec& x) const;
00087 
00089     virtual double cdf(const Vec& x) const;
00090 
00092     virtual Vec expectation() const;
00093 
00095     virtual Mat variance() const;
00096 
00098     virtual void generate(Vec& x) const;
00099 
00100     virtual void setInput(const Vec& input) const;
00101   
00102 };
00103 
00104 // Declares a few other classes and functions related to this class
00105 DECLARE_OBJECT_PTR(ConditionalGaussianDistribution);
00106   
00107 } // end of namespace PLearn
00108 
00109 #endif
00110 
00111 
00112 /*
00113   Local Variables:
00114   mode:c++
00115   c-basic-offset:4
00116   c-file-style:"stroustrup"
00117   c-file-offsets:((innamespace . 0)(inline-open . 0))
00118   indent-tabs-mode:nil
00119   fill-column:79
00120   End:
00121 */
00122 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Defines