source: branches/0.4-stable/yat/regression/KernelBox.cc @ 1392

Last change on this file since 1392 was 1392, checked in by Peter, 13 years ago

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1// $Id: KernelBox.cc 1392 2008-07-28 19:35:30Z peter $
2
3/*
4  Copyright (C) 2004, 2005 Peter Johansson
5  Copyright (C) 2006 Jari Häkkinen
6  Copyright (C) 2007 Jari Häkkinen, Peter Johansson
7
8  This file is part of the yat library, http://dev.thep.lu.se/yat
9
10  The yat library is free software; you can redistribute it and/or
11  modify it under the terms of the GNU General Public License as
12  published by the Free Software Foundation; either version 2 of the
13  License, or (at your option) any later version.
14
15  The yat library is distributed in the hope that it will be useful,
16  but WITHOUT ANY WARRANTY; without even the implied warranty of
17  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18  General Public License for more details.
19
20  You should have received a copy of the GNU General Public License
21  along with this program; if not, write to the Free Software
22  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
23  02111-1307, USA.
24*/
25
26#include "KernelBox.h"
27
28namespace theplu {
29namespace yat {
30namespace regression {
31
32  KernelBox::KernelBox(void)
33    : Kernel()
34  {
35  }
36
37  double KernelBox::operator()(const double u) const
38  {
39    if (u>1 || u<-1)
40      return 0.0;
41    else
42      return 1.0;
43  }
44
45}}} // of namespaces regression, yat, and theplu
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