Greetings,
For the following quarterly data I did a classical decomposition by hand in
a spreadsheet and got reasonably similar results using Minitab 15.
x
1 36
2 44
3 45
4 106
5 38
6 46
7 47
8 112
9 42
10 49
11 48
12 118
13 42
14 50
15 51
16 118
Trying my luck with R, I tried to use the decompose function but it gives me
the following:
Error in decompose(data.t) : time series has no or less than 3 periods
data.t is indeed a time series (is.ts returns true) and when I plot data.t
it looks like a times series. Any suggestions on how to use decompose here
(if it is the right function)? Thanks.
Tom
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