tweak comment wording

1 files changed, 3 insertions, 2 deletions

diff --git a/src/statistics.cc b/src/statistics.cc
index a0e828e..844e926 100644
--- a/src/statistics.cc
+++ b/src/statistics.cc
@@ -44,8 +44,9 @@ double StatisticsMedian(const std::vector<double>& v) {
 
   // Did we have an odd number of samples?  If yes, then center is the median.
   // If not, then we are looking for the average between center and the value
-  // before.  Instead of resorting, we just look for the max value before it.
-  // (Since `copy` is partially sorted.)
+  // before.  Instead of resorting, we just look for the max value before it,
+  // which is not necessarily the element immediately preceding `center` Since
+  // `copy` is only partially sorted by `nth_element`.
   if (v.size() % 2 == 1) return *center;
   auto center2 = std::max_element(copy.begin(), center);
   return (*center + *center2) / 2.0;