I have a data set of sales for a period of one year. I need someone to perform a
I have a data set of sales for a period of one year. I need someone to perform a double exponential smoothing on these annual sales.
Pease note that: Alpha = 0.5, Beta = 0.3, and m = 1.
Period
Quarter
Sales
1
1
10
2
2
30
3
3
50
4
4
10
5
1
10
6
2
40
7
3
60
8
4
10
9
1
20
10
2
60
11
3
90
12
4
20
