///< Same as operator() with \a min == \a avg == \a max
/**< Provided so a Statistics instance can be directly used
as a signal target. */
+ void operator()(StatisticsData const & data);
+ ///< Same as operator(), but imports statistics data from a StatisticsData object
+ /**< Provided so a Statistics instance can be directly used
+ as a signal target. */
template <class Value>
void operator()(unsigned n, StatisticAccumulator<Value> & sa);
///< Same as operator() gathers values from StatisticAccumulator