source: trunk/yat/classifier/DataLookup1D.cc @ 680

Last change on this file since 680 was 680, checked in by Jari Häkkinen, 15 years ago

Addresses #153. Introduced yat namespace. Removed alignment namespace. Clean up of code.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date ID
File size: 2.1 KB
Line 
1// $Id$
2
3/*
4  Copyright (C) The authors contributing to this file.
5
6  This file is part of the yat library, http://lev.thep.lu.se/trac/yat
7
8  The yat library is free software; you can redistribute it and/or
9  modify it under the terms of the GNU General Public License as
10  published by the Free Software Foundation; either version 2 of the
11  License, or (at your option) any later version.
12
13  The yat library is distributed in the hope that it will be useful,
14  but WITHOUT ANY WARRANTY; without even the implied warranty of
15  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  General Public License for more details.
17
18  You should have received a copy of the GNU General Public License
19  along with this program; if not, write to the Free Software
20  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
21  02111-1307, USA.
22*/
23
24#include "DataLookup1D.h"
25#include "DataLookup2D.h"
26#include "MatrixLookup.h"
27
28#include <cassert>
29#include <iostream>
30#include <iomanip>
31
32namespace theplu {
33namespace yat {
34namespace classifier {
35
36  DataLookup1D::DataLookup1D(const DataLookup2D& m, const size_t i, 
37                             const bool row_vector)
38    : column_vector_(!row_vector), index_(i), matrix_(&m), owner_(false)
39  {
40    assert( !column_vector_ || i<m.columns());
41    assert( column_vector_ || i<m.rows());
42  }
43 
44  DataLookup1D::DataLookup1D(const size_t size, const double value)
45    : column_vector_(false), index_(0), owner_(true)
46  {
47    matrix_ = new MatrixLookup(1,size,value);
48  }
49
50  DataLookup1D::DataLookup1D(const DataLookup1D& other)
51    : column_vector_(other.column_vector_), index_(other.index_),
52      matrix_(other.matrix_), owner_(false)
53  {
54  }
55
56  DataLookup1D::~DataLookup1D()
57  {
58    if (owner_)
59      delete matrix_;
60  }
61
62
63  double DataLookup1D::operator*(const DataLookup1D& other) const
64  {
65    assert(other.size()==size());
66    double res=0;
67    for (size_t i = 0; i<size(); i++)
68      res += (*this)(i)*other(i);
69    return res;
70  }
71
72
73  std::ostream& operator<<(std::ostream& os, const DataLookup1D& x)
74  {
75    os.setf(std::ios::dec);
76    os.precision(12);
77   
78    for (size_t i=0; i<x.size(); ++i) {
79      os << x(i);
80      if ((i+1)<x.size())
81        os << os.fill();
82    }
83    return os;
84  }
85
86}}} // of namespace classifier, yat, and theplu
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