PLearn 0.1
|
00001 // -*- C++ -*- 00002 00003 // TruncatedRealFunction.h 00004 // 00005 // Copyright (C) 2006 Pascal Vincent 00006 // 00007 // Redistribution and use in source and binary forms, with or without 00008 // modification, are permitted provided that the following conditions are met: 00009 // 00010 // 1. Redistributions of source code must retain the above copyright 00011 // notice, this list of conditions and the following disclaimer. 00012 // 00013 // 2. Redistributions in binary form must reproduce the above copyright 00014 // notice, this list of conditions and the following disclaimer in the 00015 // documentation and/or other materials provided with the distribution. 00016 // 00017 // 3. The name of the authors may not be used to endorse or promote 00018 // products derived from this software without specific prior written 00019 // permission. 00020 // 00021 // THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 00022 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00023 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 00024 // NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00025 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 00026 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00027 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00028 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00029 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00030 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00031 // 00032 // This file is part of the PLearn library. For more information on the PLearn 00033 // library, go to the PLearn Web site at www.plearn.org 00034 00035 // Authors: Pascal Vincent 00036 00040 #ifndef TruncatedRealFunction_INC 00041 #define TruncatedRealFunction_INC 00042 00043 #include <plearn/math/RealFunctionOfInputFeature.h> 00044 00045 namespace PLearn { 00046 00057 class TruncatedRealFunction : public RealFunctionOfInputFeature 00058 { 00059 typedef RealFunctionOfInputFeature inherited; 00060 00061 public: 00062 //##### Public Build Options ############################################ 00063 00064 real minval; 00065 real maxval; 00066 real val_for_missing; 00067 00068 public: 00069 //##### Public Member Functions ######################################### 00070 00072 TruncatedRealFunction() 00073 : minval(-FLT_MAX), 00074 maxval(FLT_MAX), 00075 val_for_missing(MISSING_VALUE) 00076 {} 00077 00078 TruncatedRealFunction(int featurenum, 00079 real the_minval, real the_maxval, 00080 real the_val_for_missing) 00081 :inherited(featurenum), 00082 minval(the_minval), 00083 maxval(the_maxval), 00084 val_for_missing(the_val_for_missing) 00085 {} 00086 00087 virtual real evaluateFeature(real x) const; 00088 00089 //##### PLearn::Object Protocol ######################################### 00090 00091 // Declares other standard object methods. 00092 PLEARN_DECLARE_OBJECT(TruncatedRealFunction); 00093 00094 // Simply calls inherited::build() then build_() 00095 virtual void build(); 00096 00098 virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies); 00099 00100 protected: 00101 //##### Protected Options ############################################### 00102 00103 // ### Declare protected option fields (such as learned parameters) here 00104 // ... 00105 00106 protected: 00107 //##### Protected Member Functions ###################################### 00108 00110 static void declareOptions(OptionList& ol); 00111 00112 private: 00113 //##### Private Member Functions ######################################## 00114 00116 void build_(); 00117 00118 private: 00119 //##### Private Data Members ############################################ 00120 00121 // The rest of the private stuff goes here 00122 }; 00123 00124 // Declares a few other classes and functions related to this class 00125 DECLARE_OBJECT_PTR(TruncatedRealFunction); 00126 00127 } // end of namespace PLearn 00128 00129 #endif 00130 00131 00132 /* 00133 Local Variables: 00134 mode:c++ 00135 c-basic-offset:4 00136 c-file-style:"stroustrup" 00137 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00138 indent-tabs-mode:nil 00139 fill-column:79 00140 End: 00141 */ 00142 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :