DataLookup1D.h

#ifndef _theplu_yat_classifier_dataLookup1D_
#define _theplu_yat_classifier_dataLookup1D_

// $Id: DataLookup1D.h 4207 2022-08-26 04:36:28Z peter $

/*
  Copyright (C) 2005 Peter Johansson
  Copyright (C) 2006 Jari Häkkinen, Peter Johansson, Markus Ringnér
  Copyright (C) 2007, 2008 Jari Häkkinen, Peter Johansson
  Copyright (C) 2009, 2022 Peter Johansson

  This file is part of the yat library, http://dev.thep.lu.se/yat

  The yat library is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public License as
  published by the Free Software Foundation; either version 3 of the
  License, or (at your option) any later version.

  The yat library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with yat. If not, see <http://www.gnu.org/licenses/>.
*/

#include "MatrixLookup.h"

#include <iosfwd>
#include <vector>

namespace theplu {
namespace yat {
namespace utility {
  class VectorBase;
}
namespace classifier {

  class DataLookup1D
  {
  public:
    typedef MatrixLookup::value_type value_type;

    typedef MatrixLookup::const_reference const_reference;

    typedef MatrixLookup::const_row_iterator const_iterator;

    DataLookup1D(const MatrixLookup& m, const size_t index,
                 const bool row_vector);

    DataLookup1D(const DataLookup1D&);

    DataLookup1D(const size_t size, const double value=0);

    DataLookup1D(const utility::VectorBase& vec,
                 const std::vector<size_t>& index);

    DataLookup1D(const utility::VectorBase& vec);

    virtual ~DataLookup1D();

    const_iterator begin() const;

    const_iterator end() const;

    size_t size(void) const;

    double operator()(const size_t i) const;

    double operator*(const DataLookup1D&) const;

  private:
    // assignment no allowed
    const DataLookup1D& operator=(const DataLookup1D&);

    const bool column_vector_;
    const size_t index_;
    const MatrixLookup* matrix_;
    const bool owner_;

  };


  std::ostream& operator<<(std::ostream& s, const DataLookup1D& v);

}}} // of namespace classifier, yat, and theplu

#endif