source: trunk/yat/regression/KernelBox.cc @ 1275

// $Id: KernelBox.cc 1275 2008-04-11 06:10:12Z jari $

/*
  Copyright (C) 2004, 2005 Peter Johansson
  Copyright (C) 2006 Jari Häkkinen
  Copyright (C) 2007 Jari Häkkinen, Peter Johansson

  This file is part of the yat library, http://trac.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 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 "KernelBox.h"

namespace theplu {
namespace yat {
namespace regression {

  KernelBox::KernelBox(void)
    : Kernel()
  {
  }

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

}}} // of namespaces regression, yat, and theplu