# source:trunk/yat/statistics/VectorFunction.h@1486

Last change on this file since 1486 was 1486, checked in by Jari Häkkinen, 14 years ago

• Property svn:eol-style set to `native`
• Property svn:keywords set to `Id`
File size: 2.4 KB
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1#ifndef _theplu_yat_statistics_vector_function_
2#define _theplu_yat_statistics_vector_function_
3
4// \$Id: VectorFunction.h 1486 2008-09-09 21:17:19Z jari \$
5
6/*
7  Copyright (C) 2007, 2008 Jari Häkkinen, Peter Johansson
8
9  This file is part of the yat library, http://dev.thep.lu.se/yat
10
11  The yat library is free software; you can redistribute it and/or
12  modify it under the terms of the GNU General Public License as
13  published by the Free Software Foundation; either version 3 of the
15
16  The yat library is distributed in the hope that it will be useful,
17  but WITHOUT ANY WARRANTY; without even the implied warranty of
18  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19  General Public License for more details.
20
21  You should have received a copy of the GNU General Public License
22  along with this program; if not, write to the Free Software
23  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
24  02111-1307, USA.
25*/
26
27#include <vector>
28
29namespace theplu {
30namespace yat {
31namespace statistics {
32
33  ///
34  /// \brief Interface Class for vector functors.
35  ///
36  struct VectorFunction
37  {
38    /**
39       \brief Destructor
40     */
41    virtual ~VectorFunction();
42
43    /**
44       \brief abstract interface
45     */
46    virtual double operator()(const std::vector<double>&) const=0;
47  };
48
49
50  ///
51  /// @brief Larget element
52  ///
53  struct Max : public VectorFunction
54  {
55    ///
56    /// \return Largest element
57    ///
58    double operator()(const std::vector<double>&) const;
59  };
60
61
62  ///
63  /// @brief Median element
64  ///
65  struct Median : public VectorFunction
66  {
67    ///
68    /// \see statistics::median(std::vector<double>, bool)
69    ///
70    /// \return Median
71    ///
72    double operator()(const std::vector<double>&) const;
73  };
74
75  ///
76  /// \brief Mean element
77  ///
78  struct Mean : public VectorFunction
79  {
80    ///
81    /// \return Mean
82    ///
83    double operator()(const std::vector<double>&) const;
84  };
85
86
87  ///
88  /// \brief Smallest element
89  ///
90  struct Min : public VectorFunction
91  {
92    ///
93    /// \return Smallest element
94    ///
95    double operator()(const std::vector<double>&) const;
96  };
97
98  /**
99     Functor that picks Nth smalles element in a vector.
100   */
101  class Nth_Element : public VectorFunction
102  {
103  public:
104    ///
105    /// \param N equal to 1 gives identical object as Min (but less
106    /// efficient)
107    ///
108    Nth_Element(size_t N);
109
110    ///
111    /// \return Nth smallest element
112    ///
113    double operator()(const std::vector<double>&) const;
114
115  private:
116    size_t N_;
117  };
118
119}}} // of namespace statistics, yat, and theplu
120
121#endif
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