David,
There is a syntax option to manually set the series range using the DATE
OBS. If your range in weeks is 1 thru 204 then you would have:
DATE OBS 1 204.
David
On Wed, Jun 15, 2011 at 5:02 AM, David wrote:
> Dear List,
>
> Can anyone help me with this query. I am trying to apply some ARIMA
> models
> to data that are arranged in weeks over approximately four years. The
> data
> is set up in the wwWKyy format and I have around 204 observations. In
> the
> "define dates" function it only offers a selection of possible series
> types,
> of which arranging your data by weeks i.e. wks 1 -204 is not
> available.
>
> Wk Date xWeek xMonth xYear
> 1 5 WK 04 5 1 2004
> 2 6 WK 04 6 2 2004
> 3 7 WK 04 7 2 2004
> 4 8 WK 04 8 2 2004
> 5 9 WK 04 9 2 2004
>
> 204 52 WK 07 52 12 2007
>
>
>
> Has anyone come across this problem before? Is there syntax that will
> enable
> me to assign periodicity by weeks?
>
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