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  3. November 2008

Re: Forecasting Method Calculations (Carlson, Christopher W.)

Thanks for the tip, Bud!

-----Original Message-----
From: bpcs-l-bounces+christopher.w.carlson=saint-gobain.com@xxxxxxxxxxxx [mailto:bpcs-l-bounces+christopher.w.carlson=saint-gobain.com@xxxxxxxxxxxx] On Behalf Of Bud North
Sent: Monday, November 10, 2008 8:55 PM
To: bpcs-l@xxxxxxxxxxxx
Subject: Re: [BPCS-L] Forecasting Method Calculations (Carlson,Christopher W.)



The forecasting education manual has an overview of the 5 methods - at least it used to. I have access to hard copy but not soft copy of this - but I'm sure you can obtain this from Infor or other sources. However, I suggest that you use statistics sources for the actual formulas and calculations - of course with the exception of new equals old. It is my understanding that the other 4 methods use exactly what you will find by looking up each method.

Bud
Harlan W. (Bud) North, CPIM
PHOENIX Business Consulting, Inc.
Cell: 508.572.9701  Office: 978.263.8326 Fax: 208-460-8219
bnorth@xxxxxxxxxxxxxxxx www.phoenixbcinc.com


date: Fri, 7 Nov 2008 13:56:12 -0500
from: "Carlson, Christopher W."
<Christopher.W.Carlson@xxxxxxxxxxxxxxxx>
subject: [BPCS-L] Forecasting Method Calculations

I'm investigating the impact of the four smoothing factor fields in FOR170 (Forecast Item Warehouse Data) on the resulting modeling and forecast generation.

Can anybody point me to an explanation of the algorithms used for the five standard forecasting methods in 6.02?

I'm hoping to put together a system whereby I can regularly recalculate smoothing factors to achieve the most accurate modeling, and I suspect that the key is knowing exactly how the forecast methods are put together.

--- Chris


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