Good day everyone, I am using the data below to fit Intervention Time Series
model for two policies introduced in 2002 (54th data point) and 2003 (55th data
point) respectively. Please can anyone give me a complete R code for modeling
the two step functions? I have already modeled the pre-intervention period
(1948 - 2001) but I need codes for the full intervention model that estimates
the impact parameters(omega) and the decay parameters(delta) as well. Thank you
all for your assistance.
data(1948 - 2011)
1 207559
2 278372
3 247834
4 262223
5 210663
6 246982
7 211016
8 223317
9 232448
10 259788
11 209765
12 259572
13 322223
14 439159
15 415186
16 428018
17 427782
18 591031
19 415753
20 381353
21 430665
22 355588
23 417457
24 427894
25 469864
26 421843
27 354634
28 378759
29 400321
30 324111
31 271339
32 265076
33 296419
34 257974
35 224882
36 178626
37 158956
38 174809
39 219044
40 227765
41 188177
42 300101
43 296051
44 293352
45 242817
46 312123
47 254653
48 309454
49 403872
50 322488
51 409383
52 397675
53 436947
54 389772
55 340562
56 496846
57 736975
58 599318
59 740458
60 614532
61 680781
62 710642
63 632037
64 1024553
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