source: trunk/c++_tools/statistics/KernelBox.cc @ 675

// $Id: KernelBox.cc 675 2006-10-10 12:08:45Z jari $

/*
  Copyright (C) The authors contributing to this file.

  This file is part of the yat library, http://lev.thep.lu.se/trac/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 2 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 this program; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  02111-1307, USA.
*/

#include "yat/statistics/KernelBox.h"
#include "yat/statistics/Kernel.h"

namespace theplu {
namespace statistics {
namespace regression {
  KernelBox::KernelBox(void)
    : Kernel()
  {
  }

  double KernelBox::weight(const double u) const
  {
    if (u>1 || u<-1)
      return 0.0;
    else
      return 1.0;
  }

} // of namespace regression
} // of namespace statistics
} // of namespace theplu