fullstats.hh

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/* -*- mia-c++  -*-
 *
 * This file is part of MIA - a toolbox for medical image analysis 
 * Copyright (c) Leipzig, Madrid 1999-2017 Gert Wollny
 *
 * MIA is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with MIA; if not, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef mia_core_fullstats_hh
#define mia_core_fullstats_hh

#include <vector>
#include <iosfwd>
#include <mia/core/defines.hh>

NS_MIA_BEGIN

class  EXPORT_CORE CFullStats {
public:

        template <typename InputIterator>
        CFullStats(InputIterator begin, InputIterator end);

        void print(std::ostream& os) const;

        double mean()const;
        double sigma()const;
        double median()const;
        double max()const;
        double min()const;

private:
        typedef std::vector<double> Vector;
        void evaluate(Vector& tmp);
        double m_mean;
        double m_sigma;
        double m_median;
        double m_max;
        double m_min;
};

template <typename InputIterator>
CFullStats::CFullStats(InputIterator begin, InputIterator end):
        m_mean(0.0),
        m_sigma(0.0),
        m_median(0.0),
        m_max(*begin),
        m_min(*begin)
{

        Vector tmp;
        while (begin != end) {
                if (m_min > *begin)
                        m_min = *begin;

                if (m_max < *begin)
                        m_max = *begin;

                m_mean += *begin;
                m_sigma += *begin * *begin;

                tmp.push_back(*begin);
                ++begin;
        }
        evaluate(tmp);
}

std::ostream& operator << (std::ostream& os, const CFullStats& stats)
{
        stats.print(os);
        return os;
}

NS_MIA_END

#endif