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Former Member
May 16, 2007 at 01:15 PM

Seasonal linear regression


Hi there, APO Guru's

We have created a forecast profile that uses strategy 35.

However when we run the forecast with this model for say the last 36months of history. The system proposes an almost straight line forecast. If we run it with 18 months history then the system proposes an acceptable forecast. I can now clearly see the sales history pattern in my forecast.

We do have enough data and seasonality in our history for the 36 months to work.

Can anyone maybe shed some light on this.

We also recently upgraded to SCM 5.0

Thanks for your assistance