source: trunk/yat/classifier/DataLookupWeighted1D.cc @ 1437

Last change on this file since 1437 was 1437, checked in by Peter, 13 years ago

merge patch release 0.4.2 to trunk. Delta 0.4.2-0.4.1

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 3.3 KB
Line 
1// $Id: DataLookupWeighted1D.cc 1437 2008-08-25 17:55:00Z peter $
2
3/*
4  Copyright (C) 2006 Jari Häkkinen, Peter Johansson
5  Copyright (C) 2007 Jari Häkkinen, Peter Johansson, Markus Ringnér
6  Copyright (C) 2008 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 "DataLookupWeighted1D.h"
27#include "MatrixLookupWeighted.h"
28
29#include <cassert>
30#include <iostream>
31#include <iomanip>
32
33namespace theplu {
34namespace yat {
35namespace classifier {
36
37  DataLookupWeighted1D::DataLookupWeighted1D(const MatrixLookupWeighted& m, 
38                                             const size_t i, 
39                             const bool row_vector)
40    : column_vector_(!row_vector), index_(i), matrix_(&m), owner_(false)
41  {
42    assert( !column_vector_ || i<m.columns());
43    assert( column_vector_ || i<m.rows());
44  }
45 
46
47  DataLookupWeighted1D::DataLookupWeighted1D(const size_t size, 
48                                             const double value,
49                                             const double weight)
50    : column_vector_(false), index_(0), owner_(true)
51  {
52    matrix_ = new MatrixLookupWeighted(1,size,value,weight);
53  }
54
55 
56  DataLookupWeighted1D::DataLookupWeighted1D(const DataLookupWeighted1D& other)
57    : column_vector_(other.column_vector_), index_(other.index_),
58      matrix_(other.matrix_), owner_(false)
59  {
60  }
61
62
63  DataLookupWeighted1D::~DataLookupWeighted1D()
64  {
65    if (owner_)
66      delete matrix_;
67  }
68
69
70  DataLookupWeighted1D::const_iterator DataLookupWeighted1D::begin(void) const
71  {
72    if (column_vector_)
73      return const_iterator(const_iterator::iterator_type(*matrix_, 0, index_), 
74                            matrix_->columns());
75    return const_iterator(const_iterator::iterator_type(*matrix_, index_, 0),1);
76  }
77
78
79  double DataLookupWeighted1D::data(const size_t i) const
80  {
81    return column_vector_? matrix_->data(i,index_) : matrix_->data(index_,i);
82  }
83
84
85  DataLookupWeighted1D::const_iterator DataLookupWeighted1D::end(void) const
86  {
87    if (column_vector_)
88      return const_iterator(const_iterator::iterator_type(*matrix_, 
89                                                          matrix_->rows(),
90                                                          index_), 
91                            matrix_->columns());
92    return const_iterator(const_iterator::iterator_type(*matrix_,index_+1,0),1);
93  }
94
95
96
97  size_t DataLookupWeighted1D::size(void) const
98  {
99    return column_vector_ ? matrix_->rows() : matrix_->columns();
100  }
101
102
103  double sum_weight(const DataLookupWeighted1D& x)
104  {
105    double r=0;
106    for (size_t i=0; i<x.size(); ++i)
107      r += x.weight(i);
108    return r;
109  }
110
111
112  double DataLookupWeighted1D::weight(const size_t i) const
113  {
114    return column_vector_? matrix_->weight(i,index_) : matrix_->weight(index_,i);
115  }
116
117
118  std::pair<double,double> DataLookupWeighted1D::operator()(const size_t i) const
119  {
120    return column_vector_ ? (*matrix_)(i,index_) : (*matrix_)(index_,i);
121  }
122
123
124}}} // of namespace classifier, yat, and theplu
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