>>load cfs >> length(cfs) ans = 1759 >> load dates >> length(dates) ans = 1759 >> plot(dates,cfs) >> max(cfs) ans = 40600 >> min(cfs) ans = 0 >> mean(cfs) ans = 244.4434 >> xx = [min(dates) max(dates)] xx = 1.0e+03 * 1.9939 1.9987 >> mm = [mean(cfs) mean(cfs)] mm = 244.4434 244.4434 >> hold on >> plot(xx, mm, 'k-')