27  *  Where no property values configured are found to determine a median from,
54         // if no property values are found to produce a median.  in operator ()()
56         std::vector<T> values;  in operator ()()  local
65             values.emplace_back(  in operator ()()
69         if (!values.empty())  in operator ()()
71             auto median = values.front();  in operator ()()
73             if (values.size() == 2)  in operator ()()
75                 // For 2 values, use the highest instead of the average  in operator ()()
77                 median = *std::max_element(values.begin(), values.end());  in operator ()()
79             else if (values.size() > 2)  in operator ()()
81                 const auto oddIt = values.begin() + values.size() / 2;  in operator ()()
82                 std::nth_element(values.begin(), oddIt, values.end());  in operator ()()
84                 // Determine median for even number of values  in operator ()()
87                     // Use average of middle 2 values for median  in operator ()()
88                     const auto evenIt = values.begin() + values.size() / 2 - 1;  in operator ()()
89                     std::nth_element(values.begin(), evenIt, values.end());  in operator ()()