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: RowOfVariable.cc 6861 2007-04-09 19:04:15Z saintmlx $ 00040 * This file is part of the PLearn library. 00041 ******************************************************* */ 00042 00043 #include "RowOfVariable.h" 00044 #include <plearn/sys/PLMPI.h> 00045 #include <plearn/display/DisplayUtils.h> 00046 00047 namespace PLearn { 00048 using namespace std; 00049 00050 00051 00054 PLEARN_IMPLEMENT_OBJECT(RowOfVariable, 00055 "Variable that outputs the rows at certain indexes in a VMat", 00056 ""); 00057 00058 RowOfVariable::RowOfVariable(VMat the_distr, Var the_index) 00059 : inherited(the_index,the_distr->width(),1), distr(the_distr) 00060 { 00061 build_(); 00062 } 00063 00064 void 00065 RowOfVariable::build() 00066 { 00067 inherited::build(); 00068 build_(); 00069 } 00070 00071 void 00072 RowOfVariable::build_() 00073 { 00074 } 00075 00076 void 00077 RowOfVariable::declareOptions(OptionList &ol) 00078 { 00079 declareOption(ol, "distr", &RowOfVariable::distr, OptionBase::buildoption, "VMat containing the rows to output"); 00080 inherited::declareOptions(ol); 00081 } 00082 00083 00084 void RowOfVariable::recomputeSize(int& l, int& w) const 00085 { 00086 if (input && distr) { 00087 w = distr->width(); 00088 l = input->nelems(); 00089 } else 00090 l = w = 0; 00091 } 00092 00093 00094 void RowOfVariable::makeDeepCopyFromShallowCopy(CopiesMap& copies) 00095 { 00096 inherited::makeDeepCopyFromShallowCopy(copies); 00097 deepCopyField(distr, copies); 00098 } 00099 00100 00101 void RowOfVariable::fprop() 00102 { 00103 for(int i=0; i<input->nelems(); i++) 00104 distr->getRow((int)input->valuedata[i],matValue(i)); 00105 } 00106 00107 00108 void RowOfVariable::bprop() 00109 { } 00110 00111 00112 void RowOfVariable::fbprop() 00113 {} 00114 00115 00116 void RowOfVariable::symbolicBprop() 00117 {PLERROR("RowOfVariable::symbolicBprop(): not implemented");} 00118 00119 void RowOfVariable::rfprop() 00120 {PLERROR("RowOfVariable::symbolicBprop(): not implemented");} 00121 00122 } // end of namespace PLearn 00123 00124 00125 /* 00126 Local Variables: 00127 mode:c++ 00128 c-basic-offset:4 00129 c-file-style:"stroustrup" 00130 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00131 indent-tabs-mode:nil 00132 fill-column:79 00133 End: 00134 */ 00135 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :