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: SelectRowsFileIndexVMatrix.cc 8617 2008-03-03 17:45:54Z nouiz $ 00039 ******************************************************* */ 00040 00041 #include "SelectRowsFileIndexVMatrix.h" 00042 00043 namespace PLearn { 00044 using namespace std; 00045 00048 PLEARN_IMPLEMENT_OBJECT(SelectRowsFileIndexVMatrix, "ONE LINE DESC", "NO HELP"); 00049 00050 SelectRowsFileIndexVMatrix::SelectRowsFileIndexVMatrix() 00051 { 00052 } 00053 00054 SelectRowsFileIndexVMatrix::SelectRowsFileIndexVMatrix(VMat the_distr, const string& indexfile) 00055 : inherited(0,the_distr->width()), distr(the_distr), indices(indexfile), index_file(indexfile) 00056 { 00057 build(); 00058 } 00059 00060 void 00061 SelectRowsFileIndexVMatrix::build() 00062 { 00063 inherited::build(); 00064 build_(); 00065 } 00066 00067 void 00068 SelectRowsFileIndexVMatrix::build_() 00069 { 00070 if (distr) { 00071 updateMtime(distr); 00072 fieldinfos = distr->fieldinfos; 00073 length_ = indices.length(); 00074 if (length_ == -1) { 00075 indices.open(index_file); 00076 length_ = indices.length(); 00077 } 00078 width_= distr->width(); 00079 defineSizes(distr->inputsize(), distr->targetsize(), distr->weightsize()); 00080 } 00081 } 00082 00083 void 00084 SelectRowsFileIndexVMatrix::declareOptions(OptionList &ol) 00085 { 00086 declareOption(ol, "distr", &SelectRowsFileIndexVMatrix::distr, OptionBase::buildoption, ""); 00087 declareOption(ol, "index_file", &SelectRowsFileIndexVMatrix::index_file, OptionBase::buildoption, ""); 00088 inherited::declareOptions(ol); 00089 } 00090 00091 real SelectRowsFileIndexVMatrix::get(int i, int j) const 00092 { return distr->get(indices[i], j); } 00093 00094 void SelectRowsFileIndexVMatrix::getSubRow(int i, int j, Vec v) const 00095 { distr->getSubRow(indices[i], j, v); } 00096 00097 void SelectRowsFileIndexVMatrix::getRow(int i, Vec v) const 00098 { distr->getRow(indices[i], v); } 00099 00100 real SelectRowsFileIndexVMatrix::dot(int i1, int i2, int inputsize) const 00101 { return distr->dot(indices[i1],indices[i2],inputsize); } 00102 00103 real SelectRowsFileIndexVMatrix::dot(int i, const Vec& v) const 00104 { return distr->dot(indices[i],v); } 00105 00106 real SelectRowsFileIndexVMatrix::getStringVal(int col, const string & str) const 00107 { return distr->getStringVal(col, str); } 00108 00109 string SelectRowsFileIndexVMatrix::getValString(int col, real val) const 00110 { return distr->getValString(col,val); } 00111 00112 string SelectRowsFileIndexVMatrix::getString(int row, int col) const 00113 { return distr->getString(indices[row], col); } 00114 00115 const map<string,real>& SelectRowsFileIndexVMatrix::getStringToRealMapping(int col) const 00116 { return distr->getStringToRealMapping(col);} 00117 00118 } // end of namespace PLearn 00119 00120 00121 /* 00122 Local Variables: 00123 mode:c++ 00124 c-basic-offset:4 00125 c-file-style:"stroustrup" 00126 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00127 indent-tabs-mode:nil 00128 fill-column:79 00129 End: 00130 */ 00131 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :