PairsVMatrix.cc

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// -*- C++ -*-

// PLearn (A C++ Machine Learning Library)
// Copyright (C) 1998 Pascal Vincent
// Copyright (C) 1999-2001 Pascal Vincent, Yoshua Bengio, Rejean Ducharme and University of Montreal
// Copyright (C) 2002 Pascal Vincent, Julien Keable, Xavier Saint-Mleux
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// 
//  1. Redistributions of source code must retain the above copyright
//     notice, this list of conditions and the following disclaimer.
// 
//  2. Redistributions in binary form must reproduce the above copyright
//     notice, this list of conditions and the following disclaimer in the
//     documentation and/or other materials provided with the distribution.
// 
//  3. The name of the authors may not be used to endorse or promote
//     products derived from this software without specific prior written
//     permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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// This file is part of the PLearn library. For more information on the PLearn
// library, go to the PLearn Web site at www.plearn.org


/* *******************************************************      
   * $Id: PairsVMatrix.cc,v 1.6 2004/07/09 19:42:23 tihocan Exp $
   ******************************************************* */

#include "PairsVMatrix.h"

namespace PLearn {
using namespace std;


PLEARN_IMPLEMENT_OBJECT(PairsVMatrix, "ONE LINE DESC", "NO HELP");

PairsVMatrix::PairsVMatrix()
{
}

PairsVMatrix::PairsVMatrix(Mat the_data1, Mat the_data2)
  : inherited(data1.width()+data2.width(), data1.length()*data2.length()), 
    data1(the_data1), data2(the_data2)
{
}

void
PairsVMatrix::build()
{
    inherited::build();
    build_();
}

void
PairsVMatrix::build_()
{
}

void
PairsVMatrix::declareOptions(OptionList &ol)
{
    declareOption(ol, "data1", &PairsVMatrix::data1, OptionBase::buildoption, "");
    declareOption(ol, "data2", &PairsVMatrix::data2, OptionBase::buildoption, "");
    inherited::declareOptions(ol);
}

void PairsVMatrix::getNewRow(int ij, const Vec& samplevec) const
{
  //ij = ij%length_;
  ij %= length_;
  real* data = samplevec.data();
  real* data_i = data1[ij/data2.length()];
  real* data_j = data2[ij%data2.length()];
  int kk=0;
  for (int k=0;k<data1.width();k++)
    data[kk++] = data_i[k];
  for (int k=0;k<data2.width();k++)
    data[kk++] = data_j[k];
}


} // end of namespcae PLearn

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