PLearn 0.1
AddMissingVMatrix.h
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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 :
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