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) 1999-2002 Pascal Vincent, Yoshua Bengio, Rejean Ducharme and University of Montreal 00006 // Copyright (C) 2001-2002 Nicolas Chapados, Ichiro Takeuchi, Jean-Sebastien Senecal 00007 // Copyright (C) 2002 Xiangdong Wang, Christian Dorion 00008 00009 // Redistribution and use in source and binary forms, with or without 00010 // modification, are permitted provided that the following conditions are met: 00011 // 00012 // 1. Redistributions of source code must retain the above copyright 00013 // notice, this list of conditions and the following disclaimer. 00014 // 00015 // 2. Redistributions in binary form must reproduce the above copyright 00016 // notice, this list of conditions and the following disclaimer in the 00017 // documentation and/or other materials provided with the distribution. 00018 // 00019 // 3. The name of the authors may not be used to endorse or promote 00020 // products derived from this software without specific prior written 00021 // permission. 00022 // 00023 // THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 00024 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00025 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 00026 // NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00027 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 00028 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00029 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00030 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00031 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00032 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00033 // 00034 // This file is part of the PLearn library. For more information on the PLearn 00035 // library, go to the PLearn Web site at www.plearn.org 00036 00037 00038 /* ******************************************************* 00039 * $Id: OutputVariable.cc 3994 2005-08-25 13:35:03Z chapados $ 00040 * This file is part of the PLearn library. 00041 ******************************************************* */ 00042 00043 #include "OutputVariable.h" 00044 #include "Var_operators.h" 00045 #include <plearn/math/plapack.h> 00046 00047 namespace PLearn { 00048 using namespace std; 00049 00050 00053 PLEARN_IMPLEMENT_OBJECT(OutputVariable, "Output var contents to a file.", 00054 "Just writes the var contents to a file.\n"); 00055 00056 OutputVariable::OutputVariable(Variable* input, char* filename) 00057 : inherited(input, input->length(),input->width()) 00058 { 00059 output_file = new ofstream(filename); 00060 } 00061 00062 OutputVariable::~OutputVariable() 00063 { 00064 output_file->close(); 00065 delete output_file; 00066 } 00067 00068 void OutputVariable::recomputeSize(int& l, int& w) const 00069 { 00070 if (input) { 00071 l = input->length(); 00072 w = input->width(); 00073 } else 00074 l = w = 0; 00075 } 00076 00077 00078 void OutputVariable::fprop() 00079 { 00080 *output_file << input->value << "\n"; 00081 00082 for(int k=0; k<input->nelems(); k++) { 00083 valuedata[k] = input->valuedata[k]; 00084 } 00085 } 00086 00087 00088 void OutputVariable::bprop() 00089 { 00090 for(int k=0; k<input->nelems(); k++) { 00091 input->gradientdata[k] += gradientdata[k]; 00092 } 00093 } 00094 00095 void OutputVariable::symbolicBprop() 00096 { 00097 PLERROR("In OutputVariable::symbolicBprop: feature not implemented"); 00098 } 00099 00100 00101 void OutputVariable::rfprop() 00102 { 00103 PLERROR("In OutputVariable::rfprop: feature not implemented"); 00104 } 00105 00106 00107 00108 } // end of namespace PLearn 00109 00110 00111 /* 00112 Local Variables: 00113 mode:c++ 00114 c-basic-offset:4 00115 c-file-style:"stroustrup" 00116 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00117 indent-tabs-mode:nil 00118 fill-column:79 00119 End: 00120 */ 00121 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :