Arima Excel Template for Forecasting Purposes

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Forecasting document for excel computation.

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Content

1
2
3
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8

A
B
ARIMA model
Instruction

C

D

E

F

Model
Dy t = a0+ a1Dy t-1 +a2Dy t-2 + et + qet-1
a0

alt. 1 alt. 2
0.1
0.4

G

H
I
J
K
L
Simulation: statistical summary
Dy:1 Dy:2
e
y:1
Mean
0.01
0.19 0.59 11.81
SD
0.10
0.11 0.15 4.91
Autocorr. #DIV/0!
1.00 0.78 1.00
Simulation: graphs

a1

0.2
0.8
a2
9
0.2 -0.5
10
q
0.3
0.2
11
12 Simulation: table
13
e Dy:1
14
-2
0.00 0.17
15
-1
0.00 0.17
16
0
1.00 1.17
17
1
0.00 0.67
18
2
0.00 0.47
19
3
0.00 0.33
20
4
0.00 0.26
21
5
0.00 0.22
22
6
0.00
0.2
23
7
0.00 0.18
24
8
0.00 0.18
25
9
0.00 0.17
26
10
0.00 0.17
27
11
0.00 0.17
28
12
0.00 0.17
29
13
0.00 0.17
30
14
0.00 0.17
31
15
0.00 0.17
32
16
0.00 0.17
33
17
0.00 0.17
34
18
0.00 0.17
35
19
0.00 0.17
36
20
0.00 0.17
37
21
0.00 0.17
38
22
0.00 0.17
39
23
0.00 0.17
40
24
0.00 0.17
41
25
0.00 0.17
42
26
0.00 0.17
43
27
0.00 0.17
44
28
0.00 0.17
45
29
0.00 0.17
46
30
0.00 0.17
47
31
0.00 0.17
48
32
0.00 0.17
49
33
0.00 0.17
50
34
0.00 0.17
51
35
0.00 0.17
52
36
0.00 0.17
53
37
0.00 0.17
54
38
0.00 0.17

First differences

2.0

1.5

y:1
1.00
1.17
2.33
3.00
3.47
3.79
4.05
4.27
4.46
4.65
4.82
4.99
5.16
5.33
5.50
5.67
5.83
6.00
6.17
6.33
6.50
6.67
6.83
7.00
7.17
7.33
7.50
7.67
7.83
8.00
8.17
8.33
8.50
8.67
8.83
9.00
9.17
9.33
9.50
9.67
9.83

Dy:2
0.57
0.57
1.571429
1.571429
0.871429
0.311429
0.213429
0.415029
0.625309
0.692733
0.641532
0.566859
0.532721
0.542748
0.567837
0.582896
0.582398
0.574471
0.568377
0.567467
0.569785
0.572094
0.572783
0.572179
0.571352
0.570992
0.571118
0.571398
0.57156
0.571549
0.571459
0.571393
0.571385
0.571411
0.571437
0.571444
0.571437
0.571427
0.571424
0.571425
0.571428

1.0

y:2
1.00
1.57
3.14
4.71
5.59
5.90
6.11
6.53
7.15
7.84
8.49
9.05
9.58
10.13
10.70
11.28
11.86
12.44
13.00
13.57
14.14
14.71
15.29
15.86
16.43
17.00
17.57
18.14
18.71
19.29
19.86
20.43
21.00
21.57
22.14
22.71
23.29
23.86
24.43
25.00
25.57

0.5

0.0
-1

3

7

11 15 19 23 27 31 35
e

Dy:1

Dy:2

Levels

30
20
10
0
-2

3

8

13 18 23 28 33 38
y:1

y:2

A
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109

39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
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63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93

B
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00

C
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.17

D
10.00
10.17
10.33
10.50
10.67
10.83
11.00
11.17
11.33
11.50
11.67
11.83
12.00
12.17
12.33
12.50
12.67
12.83
13.00
13.17
13.33
13.50
13.67
13.83
14.00
14.17
14.33
14.50
14.67
14.83
15.00
15.17
15.33
15.50
15.67
15.83
16.00
16.17
16.33
16.50
16.67
16.83
17.00
17.17
17.33
17.50
17.67
17.83
18.00
18.17
18.33
18.50
18.67
18.83
19.00

E
0.57143
0.57143
0.571429
0.571428
0.571428
0.571428
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429

F
G
26.14
26.71
27.29
27.86
28.43
29.00
29.57
30.14
30.71
31.29
31.86
32.43
33.00
33.57
34.14
34.71
35.29
35.86
36.43
37.00
37.57
38.14
38.71
39.29
39.86
40.43
41.00
41.57
42.14
42.71
43.29
43.86
44.43
45.00
45.57
46.14
46.71
47.29
47.86
48.43
49.00
49.57
50.14
50.71
51.29
51.86
52.43
53.00
53.57
54.14
54.71
55.29
55.86
56.43
57.00

H

I

J

K

L

A
110
111
112
113
114
115
116

94
95
96
97
98
99
100

B
0.00
0.00
0.00
0.00
0.00
0.00
0.00

C
0.17
0.17
0.17
0.17
0.17
0.17
0.17

D
19.17
19.33
19.50
19.67
19.83
20.00
20.17

E
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429
0.571429

F
G
57.57
58.14
58.71
59.29
59.86
60.43
61.00

H

I

J

K

L

M
1
2
3
4
5
6
7

y:2
32.43
16.66
1.00

8
9
10
11
12
13
14
15
16
35 39
17
18
Dy:2
19
20
21
22
23
24
25
26
27
28
29 38
33
30
31
32
33
34
35
36
37
38
39
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54

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