PLearn 0.1
RepeatVMatrix.cc
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00001 // -*- C++ -*-
00002 
00003 // RepeatVMatrix.cc
00004 //
00005 // Copyright (C) 2005 Hugo Larochelle
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 /* *******************************************************
00036    * $Id: .pyskeleton_header 544 2003-09-01 00:05:31Z plearner $
00037    ******************************************************* */
00038 
00039 // Authors: Hugo Larochelle
00040 
00044 #include "RepeatVMatrix.h"
00045 
00046 namespace PLearn {
00047 using namespace std;
00048 
00050 // RepeatVMatrix //
00052 RepeatVMatrix::RepeatVMatrix()
00053   : repeat_n_times(1)
00054 {}
00055 
00056 PLEARN_IMPLEMENT_OBJECT(RepeatVMatrix,
00057     "Repeats the source VMatrix a certain number of times",
00058     "This VMatrix simply concatenates repeat_n_times-1 copies of \n"
00059     "source VMatrix to itself."
00060 );
00061 
00063 // declareOptions //
00065 void RepeatVMatrix::declareOptions(OptionList& ol)
00066 {
00067   declareOption(ol, "repeat_n_times", &RepeatVMatrix::repeat_n_times, OptionBase::buildoption,
00068                 "Number of times to repeat the source VMatrix.\n");
00069 
00070   inherited::declareOptions(ol);
00071 }
00072 
00074 // build //
00076 void RepeatVMatrix::build()
00077 {
00078   inherited::build();
00079   build_();
00080 }
00081 
00083 // build_ //
00085 void RepeatVMatrix::build_()
00086 {
00087   if(source)
00088   {
00089     setMetaInfoFromSource();
00090     length_ = source->length()*repeat_n_times;
00091     if(repeat_n_times < 1)
00092       PLERROR("In RepeatVMatrix::build_(): repeat_n_times cannot be < 1");
00093   }
00094 }
00095 
00097 // getNewRow //
00099 void RepeatVMatrix::getNewRow(int i, const Vec& v) const
00100 {
00101   source->getRow(i%source->length(),v);
00102 }
00103 
00105 // makeDeepCopyFromShallowCopy //
00107 void RepeatVMatrix::makeDeepCopyFromShallowCopy(CopiesMap& copies)
00108 {
00109   inherited::makeDeepCopyFromShallowCopy(copies);
00110 
00111   //PLERROR("RepeatVMatrix::makeDeepCopyFromShallowCopy not fully (correctly) implemented yet!");
00112 }
00113 
00114 } // end of namespace PLearn
00115 
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