Hello all, I am curious, what mean is obtained from this code snippet? boost::accumulators::accumulator_set<int, boost::accumulators::features<boost::accumulators::tag::mean> > Accumulator; int Mean = boost::accumulators::mean(Accumulator); It appears to be non-zero when I test it. Is there some way I can tell that the average was taken for an empty data set? I was looking around in the documentation for the accumulator library, but was unable to find an answer to this question. Thanks in advance! -- Dylan