PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // RealFunctionOfInputFeature.cc 00004 // 00005 // Copyright (C) 2006 Pascal Vincent 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 // Authors: Pascal Vincent 00036 00040 #include "RealFunctionOfInputFeature.h" 00041 00042 namespace PLearn { 00043 using namespace std; 00044 00045 PLEARN_IMPLEMENT_OBJECT( 00046 RealFunctionOfInputFeature, 00047 "This is a base class for real functions that are functions of a single input feature.", 00048 "The index of that input feature is specified in which_feature.\n" 00049 "The default is to return that selected feature unaltered." 00050 ); 00051 00052 // ### Nothing to add here, simply calls build_ 00053 void RealFunctionOfInputFeature::build() 00054 { 00055 inherited::build(); 00056 build_(); 00057 } 00058 00059 void RealFunctionOfInputFeature::makeDeepCopyFromShallowCopy(CopiesMap& copies) 00060 { 00061 inherited::makeDeepCopyFromShallowCopy(copies); 00062 } 00063 00064 void RealFunctionOfInputFeature::declareOptions(OptionList& ol) 00065 { 00066 // ### Declare all of this object's options here. 00067 // ### For the "flags" of each option, you should typically specify 00068 // ### one of OptionBase::buildoption, OptionBase::learntoption or 00069 // ### OptionBase::tuningoption. If you don't provide one of these three, 00070 // ### this option will be ignored when loading values from a script. 00071 // ### You can also combine flags, for example with OptionBase::nosave: 00072 // ### (OptionBase::buildoption | OptionBase::nosave) 00073 00074 declareOption(ol, "which_feature", &RealFunctionOfInputFeature::which_feature, 00075 OptionBase::buildoption, 00076 "Index of the input feature considered"); 00077 00078 // Now call the parent class' declareOptions 00079 inherited::declareOptions(ol); 00080 } 00081 00082 real RealFunctionOfInputFeature::evaluate(const Vec& x) const 00083 { 00084 return evaluateFeature(x[which_feature]); 00085 } 00086 00087 real RealFunctionOfInputFeature::evaluateFeature(real x) const 00088 { return x; } 00089 00090 void RealFunctionOfInputFeature::build_() 00091 {} 00092 00093 00094 } // end of namespace PLearn 00095 00096 00097 /* 00098 Local Variables: 00099 mode:c++ 00100 c-basic-offset:4 00101 c-file-style:"stroustrup" 00102 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00103 indent-tabs-mode:nil 00104 fill-column:79 00105 End: 00106 */ 00107 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :