I think we've been thinking about this wrong. You apparently want to report the mean for the period 23:10:00 - 23:20:00 from 1-second samples (sampled on the second). […] So, your bounds should define the interval represented by the mean you are reporting (23:10:00 - 23:20:00), and you should estimate that mean using 601 samples, but weighting the first and last sample half as much as the others.
I do not compute the average and neither can I influence that. Each statistic is based on 600 samples. Either 23:10:00 to 23:19:59, labeled 23:10, or 23:10:01 to 23:20:00, labeled 23:20. So either closed-open or open-closed if you would use 23:10 and 23:20 as bounds.
Best, Erik -- https://ac.erikquaeghebeur.name _______________________________________________ CF-metadata mailing list CF-metadata@cgd.ucar.edu http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata