PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // TransposeVMatrix.cc 00004 // 00005 // Copyright (C) 2004 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: TransposeVMatrix.cc 8734 2008-03-28 17:26:50Z nouiz $ 00037 ******************************************************* */ 00038 00039 // Authors: Olivier Delalleau 00040 00044 #include "TransposeVMatrix.h" 00045 00046 namespace PLearn { 00047 using namespace std; 00048 00050 // TransposeVMatrix // 00052 TransposeVMatrix::TransposeVMatrix() 00053 {} 00054 00055 TransposeVMatrix::TransposeVMatrix(const VMat& the_source) 00056 { 00057 source = the_source; 00058 build(); 00059 } 00060 00061 PLEARN_IMPLEMENT_OBJECT(TransposeVMatrix, 00062 "A VMatrix that sees the transpose of another VMatrix.", 00063 "" 00064 ); 00065 00067 // declareOptions // 00069 void TransposeVMatrix::declareOptions(OptionList& ol) 00070 { 00071 // ### Declare all of this object's options here 00072 // ### For the "flags" of each option, you should typically specify 00073 // ### one of OptionBase::buildoption, OptionBase::learntoption or 00074 // ### OptionBase::tuningoption. Another possible flag to be combined with 00075 // ### is OptionBase::nosave 00076 00077 // ### ex: 00078 // declareOption(ol, "myoption", &TransposeVMatrix::myoption, OptionBase::buildoption, 00079 // "Help text describing this option"); 00080 // ... 00081 00082 // Now call the parent class' declareOptions 00083 inherited::declareOptions(ol); 00084 } 00085 00087 // build // 00089 void TransposeVMatrix::build() 00090 { 00091 // ### Nothing to add here, simply calls build_ 00092 inherited::build(); 00093 build_(); 00094 } 00095 00097 // build_ // 00099 void TransposeVMatrix::build_() 00100 { 00101 if (source) { 00102 width_ = source->length(); 00103 length_ = source->width(); 00104 if (inputsize_ < 0) 00105 inputsize_ = width_; 00106 if (targetsize_ < 0) 00107 targetsize_ = 0; 00108 if (weightsize_ < 0) 00109 weightsize_ = 0; 00110 setMetaInfoFromSource(); 00111 } 00112 } 00113 00115 // getNewRow // 00117 void TransposeVMatrix::getNewRow(int i, const Vec& v) const 00118 { 00119 source->getColumn(i, v); 00120 } 00121 00123 // getColumn // 00125 void TransposeVMatrix::getColumn(int j, Vec v) const 00126 { 00127 //We do not buffer the column... 00128 source->getRow(j, v); 00129 } 00130 00132 // getMat // 00134 void TransposeVMatrix::getMat(int i, int j, Mat m) const 00135 { 00136 #ifdef BOUNDCHECK 00137 if(i<0 || j<0 || i+m.length()>length() || j+m.width()>width()) 00138 PLERROR("In VMatrix::getMat(i,j,m) OUT OF BOUNDS"); 00139 #endif 00140 Vec tmp(m.length()); 00141 for(int ii=0; ii<m.width(); ii++) 00142 { 00143 source->getSubRow(i+ii, j,tmp); 00144 for(int k=0;k<m.length();k++) 00145 m(k,ii)=tmp[k]; 00146 } 00147 } 00148 00150 // makeDeepCopyFromShallowCopy // 00152 void TransposeVMatrix::makeDeepCopyFromShallowCopy(CopiesMap& copies) 00153 { 00154 inherited::makeDeepCopyFromShallowCopy(copies); 00155 } 00156 00157 } // end of namespace PLearn 00158 00159 00160 /* 00161 Local Variables: 00162 mode:c++ 00163 c-basic-offset:4 00164 c-file-style:"stroustrup" 00165 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00166 indent-tabs-mode:nil 00167 fill-column:79 00168 End: 00169 */ 00170 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :