PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // AddMissingVMatrix.h 00004 // 00005 // Copyright (C) 2005 Olivier Delalleau 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 /* ******************************************************* 00036 * $Id: AddMissingVMatrix.h,v 1.1 2005/07/18 19:04:18 delallea Exp $ 00037 ******************************************************* */ 00038 00039 // Authors: Olivier Delalleau 00040 00044 #ifndef AddMissingVMatrix_INC 00045 #define AddMissingVMatrix_INC 00046 00047 #include <plearn/math/PRandom.h> 00048 #include <plearn/vmat/SourceVMatrix.h> 00049 00050 namespace PLearn { 00051 00052 class AddMissingVMatrix: public SourceVMatrix 00053 { 00054 00055 private: 00056 00057 typedef SourceVMatrix inherited; 00058 00059 protected: 00060 00061 PP<PRandom> random_gen; 00062 00063 // ********************* 00064 // * protected options * 00065 // ********************* 00066 00067 public: 00068 00069 // ************************ 00070 // * public build options * 00071 // ************************ 00072 00073 bool add_missing_target; 00074 real missing_prop; 00075 int only_on_first; 00076 int32_t seed; 00078 TVec<int> missing_values_columns; 00079 00080 // **************** 00081 // * Constructors * 00082 // **************** 00083 00085 AddMissingVMatrix(); 00086 00087 // ****************** 00088 // * Object methods * 00089 // ****************** 00090 00091 private: 00092 00094 void build_(); 00095 00096 protected: 00097 00099 static void declareOptions(OptionList& ol); 00100 00103 virtual void getNewRow(int i, const Vec& v) const; 00104 00105 public: 00106 00107 // Simply calls inherited::build() then build_(). 00108 virtual void build(); 00109 00111 virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies); 00112 00115 virtual PP<Dictionary> getDictionary(int col) const; 00116 00118 virtual void getValues(int row, int col, Vec& values) const; 00119 00121 virtual void getValues(const Vec& input, int col, Vec& values) const; 00122 00123 virtual string getValString(int col, real val) const; 00124 virtual real getStringVal(int col, const string & str) const; 00125 00127 PLEARN_DECLARE_OBJECT(AddMissingVMatrix); 00128 00129 }; 00130 00131 DECLARE_OBJECT_PTR(AddMissingVMatrix); 00132 00133 inline VMat add_missing(VMat source, const TVec<int>& missing_values_columns) 00134 { 00135 AddMissingVMatrix* ret = new AddMissingVMatrix(); 00136 ret->source = source; 00137 ret->missing_values_columns.resize(missing_values_columns.length()); 00138 ret->missing_values_columns << missing_values_columns; 00139 ret->build(); 00140 return ret; 00141 } 00142 00143 } // end of namespace PLearn 00144 00145 #endif 00146 00147 /* 00148 Local Variables: 00149 mode:c++ 00150 c-basic-offset:4 00151 c-file-style:"stroustrup" 00152 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00153 indent-tabs-mode:nil 00154 fill-column:79 00155 End: 00156 */ 00157 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :