83 lines
2.0 KiB
C++
83 lines
2.0 KiB
C++
/*
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* This file is part of libgim.
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*
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* libgim is free software: you can redistribute it and/or modify it under the
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* terms of the GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later
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* version.
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*
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* libgim is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with libgim. If not, see <http://www.gnu.org/licenses/>.
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*
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* Copyright 2010 Danny Robson <danny@nerdcruft.net>
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*/
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#include "stats.hpp"
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#include <cmath>
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#include <limits>
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template <typename T>
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util::stats::accumulator<T>::accumulator ():
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count (0),
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min (std::numeric_limits<T>::max ()),
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max (std::numeric_limits<T>::min ()),
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sum (0)
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{ ; }
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template <typename T>
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void
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util::stats::accumulator<T>::add (T val) {
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min = std::min (val, min);
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max = std::max (val, max);
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sum += val;
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++count;
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}
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template <typename T>
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void
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util::stats::accumulator<T>::add (const accumulator<T> &rhs) {
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min = std::min (rhs.min, min);
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max = std::max (rhs.max, max);
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sum += rhs.sum;
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count += rhs.count;
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}
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template <typename T>
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T
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util::stats::accumulator<T>::range (void) const
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{ return max - min; }
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template <typename T>
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T
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util::stats::accumulator<T>::mean (void) const
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{ return sum / count; }
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template struct util::stats::accumulator<double>;
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template struct util::stats::accumulator<float>;
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template <typename T>
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std::ostream&
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util::stats::operator<< (std::ostream &os, const accumulator<T> &rhs) {
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os << "(min: " << rhs.min << ", max: " << rhs.max << ")";
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return os;
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}
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template std::ostream& util::stats::operator<< (std::ostream&, const accumulator<double> &);
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template std::ostream& util::stats::operator<< (std::ostream&, const accumulator<float > &);
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