on 12-11-2014 9:56 AM
Hi Vijesh,
Screenshot is not very clear - just want to check is there any overlap between history and forecast horizon?
Regrds,
Alok
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Pls help
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Hi Vijesh,
Alok already suggested you the answer. You cannot overlap your history and forecast horizon.
The system will generate an Ex-post forecast after the initialization period for the history horizon to fit the model then the statistical model predictions start at the beginning of the forecast horizon.
am trying to run forecast for December 2014 with December data.
What exactly are you trying to accomplish here?
The Ex-post forecast might be what you are looking for?
Ex-Post Forecast - Univariate Forecasting - SAP Library
Regards,
Max
Hi Vijesh,
If you want rolling history, use the periods and offset, and not fix the horizon for History or Forecast.
For example, from your screen shot, you wanted 1 year history to be taken into account to calculate forecast for 1 year. Use the periods as 12 or 52, based on your TBP whether it is in Months or weeks, accordingly it will calculate.
But if you are trying to fix the horizon, it should never overlap as suggested by Alok.
Regards
JB
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