table 7.3 perfectly reproduced, test results listed

table 7.3 was perfectly reproduced.

Here is the test result

1. Holts linear method:

• level:

table, calculated
18.41 18.412
21.89 21.89448
24.21 24.20946
27.05 27.05334
27.57 27.57038
29.12 29.11693
30.38 30.38033
31.28 31.28096
30.8 30.80013
31.72 31.71834
32.68 32.67985
33.57 33.57618
38.17 38.17205
41.12 41.1229
41.92 41.92381

• trend:

table , calculated
3.62 3.6204
3.59 3.59282
3.33 3.33725
3.24 3.23858
2.69 2.69427
2.46 2.46472
2.22 2.22446
1.96 1.95969
1.47 1.47159
1.36 1.36091
1.28 1.28103
1.2 1.20409
1.88 1.88245
2.1 2.09613
1.84 1.83708

• yhat:

table calculated
21.86 21.86
22.03 22.0324
25.48 25.4873
27.54 27.54671
30.29 30.29192
30.26 30.26465
31.58 31.58165
32.6 32.60479
33.24 33.24065
32.27 32.27172
33.08 33.07926
33.96 33.96088
34.78 34.78027
40.06 40.0545
43.22 43.21903

1. exponential trend method

• level
  table calculated
  18.41 18.412
  21.93 21.93004
  24.39 24.38945
  27.32 27.32443
  27.91 27.91734
  29.44 29.44038
  30.68 30.68526
  31.56 31.5603
  31.04 31.04579
  31.91 31.91071
  32.84 32.8415
  33.71 33.71613
  38.29 38.29396
  41.28 41.28291
  42.1 42.10714

• trend
  table calculated

1.21 1.20629
1.2 1.20325
1.18 1.18503
1.17 1.17209
1.14 1.14201
1.12 1.12452
1.11 1.10807
1.09 1.09216
1.07 1.07047
1.06 1.06195
1.06 1.05539
1.05 1.04964
1.07 1.06687
1.07 1.0691
1.06 1.05928

• yhat
  table calculated

21.86 21.86
22.21 22.21022
26.38 26.38726
28.89 28.90217
32.02 32.02668
31.88 31.88191
33.1 33.1063
33.99 34.00151
34.47 34.46896
33.23 33.23356
33.89 33.88749
34.66 34.66063
35.39 35.38978
40.86 40.85454
44.13 44.13572