例P109布朗二次曲线指数平滑法预测

a=0.50

At Bt Ct Ft+m(m=1)F t+m(m=2) ----

14.66 1.130.25-

15.95 1.410.2615.92

14.80-0.07-0.1317.4916.29 14.58-0.25-0.1414.6617.88

14.56-0.20-0.1014.2614.47

15.220.290.0314.3114.05

15.800.500.0715.5214.16

16.830.890.1416.3315.57 18.20 1.300.2017.7916.44

17.670.26-0.0719.6018.00

18.610.640.0317.9019.90

19.500.820.0619.2717.79

20.76 1.150.1220.3519.31 22.76 1.770.2321.9720.44 24.60 1.970.2324.6522.15 26.02 1.780.1326.6825.00

28.02 2.010.1527.8727.02

29.53 1.790.0730.1028.06 31.46 1.930.0931.3630.33 33.92 2.330.1633.4331.47 39.16 4.300.5636.3333.55 47.547.31 1.1043.7436.56 53.897.440.8955.3944.58

61.7757.05

63.10