PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // PLearn (A C++ Machine Learning Library) 00004 // Copyright (C) 1998 Pascal Vincent 00005 // Copyright (C) 1999-2001 Pascal Vincent, Yoshua Bengio, Rejean Ducharme and University of Montreal 00006 // Copyright (C) 2002 Pascal Vincent, Julien Keable, Xavier Saint-Mleux 00007 // 00008 // Redistribution and use in source and binary forms, with or without 00009 // modification, are permitted provided that the following conditions are met: 00010 // 00011 // 1. Redistributions of source code must retain the above copyright 00012 // notice, this list of conditions and the following disclaimer. 00013 // 00014 // 2. Redistributions in binary form must reproduce the above copyright 00015 // notice, this list of conditions and the following disclaimer in the 00016 // documentation and/or other materials provided with the distribution. 00017 // 00018 // 3. The name of the authors may not be used to endorse or promote 00019 // products derived from this software without specific prior written 00020 // permission. 00021 // 00022 // THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 00023 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00024 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 00025 // NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00026 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 00027 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00028 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00029 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00030 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00031 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00032 // 00033 // This file is part of the PLearn library. For more information on the PLearn 00034 // library, go to the PLearn Web site at www.plearn.org 00035 00036 00037 /* ******************************************************* 00038 * $Id: VecExtendedVMatrix.cc 8617 2008-03-03 17:45:54Z nouiz $ 00039 ******************************************************* */ 00040 00041 #include "VecExtendedVMatrix.h" 00042 #include <plearn/math/TMat.h> 00043 00044 namespace PLearn { 00045 using namespace std; 00046 00047 00050 PLEARN_IMPLEMENT_OBJECT(VecExtendedVMatrix, 00051 "Extends the source by appending columns to its right", 00052 "A VecExtendedVMatrix is similar to an" 00053 " ExtendedVMatrix: it extends the\n" 00054 "source VMat by appending COLUMNS to its right. The" 00055 " appended columns\n" 00056 "are filled with a constant vector passed upon" 00057 " construction. For example,\n" 00058 "if the vector [1,2,3] is passed at construction, then" 00059 " every row of the\n" 00060 "source VMat will be extended by 3 columns, containing" 00061 " [1,2,3]\n" 00062 "(constant)\n" 00063 ); 00064 00065 VecExtendedVMatrix::VecExtendedVMatrix(bool call_build_) 00066 : inherited(call_build_) 00067 { 00068 // build_() won't do anything 00069 } 00070 00071 VecExtendedVMatrix::VecExtendedVMatrix(VMat the_source, Vec extend_data, 00072 bool call_build_) 00073 : inherited(the_source, 00074 the_source->length(), 00075 the_source->width() + extend_data.length(), 00076 call_build_), 00077 extend_data_(extend_data) 00078 { 00079 if( call_build_ ) 00080 build_(); 00081 } 00082 00083 void VecExtendedVMatrix::build() 00084 { 00085 inherited::build(); 00086 build_(); 00087 } 00088 00089 void VecExtendedVMatrix::build_() 00090 { 00091 if (source) 00092 fieldinfos = source->getFieldInfos(); 00093 updateMtime(source); 00094 } 00095 00096 void VecExtendedVMatrix::declareOptions(OptionList &ol) 00097 { 00098 declareOption(ol, "underlying_", &VecExtendedVMatrix::source, 00099 (OptionBase::learntoption | OptionBase::nosave), 00100 "DEPRECATED - Use 'source' instead."); 00101 00102 declareOption(ol, "extend_data_", &VecExtendedVMatrix::extend_data_, 00103 OptionBase::buildoption, ""); 00104 00105 inherited::declareOptions(ol); 00106 } 00107 00108 void VecExtendedVMatrix::getNewRow(int i, const Vec& v) const 00109 { 00110 #ifdef BOUNDCHECK 00111 if(i<0 || i>=length()) 00112 PLERROR("In VecExtendedVMatrix::getNewRow OUT OF BOUNDS"); 00113 if(v.length() != width()) 00114 PLERROR("In VecExtendedVMatrix::getNewRow v.length() must be equal to the VMat's width"); 00115 #endif 00116 00117 Vec subv = v.subVec(0, source->width()); 00118 source->getRow(i,subv); 00119 copy(extend_data_.begin(), extend_data_.end(), 00120 v.begin() + source->width()); 00121 } 00122 00123 } // end of namespace PLearn 00124 00125 00126 /* 00127 Local Variables: 00128 mode:c++ 00129 c-basic-offset:4 00130 c-file-style:"stroustrup" 00131 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00132 indent-tabs-mode:nil 00133 fill-column:79 00134 End: 00135 */ 00136 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :