lib/time_data.cpp

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/*****************************************************************************
** Includes
*****************************************************************************/

#include <cmath>
#include "../../include/ecl/time/time_data.hpp"

/*****************************************************************************
** Namespaces
*****************************************************************************/

namespace ecl {

/*****************************************************************************
** Implementation [TimeData]
*****************************************************************************/

ecl::Duration TimeData::average() const {
        double sum = 0.0;
        for ( unsigned int i = 0; i < durations.size(); ++i ) {
                sum += durations[i];
        }
        return ecl::Duration(sum/static_cast<double>(durations.size()));
};

ecl::Duration TimeData::stdDev() const {
        ecl::Duration avg = average();
        double sum = 0.0;
        for ( unsigned int i = 0; i < durations.size(); ++i ) {
                sum += (static_cast<double>(durations[i]) - static_cast<double>(avg))*
                                (static_cast<double>(durations[i]) - static_cast<double>(avg));
        }
        return ecl::Duration(sqrt(sum/static_cast<double>(durations.size())));
};

ecl::Duration TimeData::variance() const {
        ecl::Duration avg = average();
        double sum = 0.0;
        for ( unsigned int i = 0; i < durations.size(); ++i ) {
                sum += (static_cast<double>(durations[i]) - static_cast<double>(avg))*
                                (static_cast<double>(durations[i]) - static_cast<double>(avg));
        }
        return ecl::Duration(sum/static_cast<double>(durations.size()));
};

} // namespace ecl