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Jun 07, 2020 at 02:22 PM

Forecast Error MAPE - Best Practices?

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Hi,

I am working on a forecasting project where MAPE is being used for error measures. It is the mean of average over a number of periods. It will be great if you can help with the following questions.

1 - As i understand, the error is averaged over n number of months. Do you know what the recommended value of n is? I know it may be industry dependant, but it will be good to know what is commonly used.

2- What would be the reasons for not using n=1?

Regards,

Zeeshan.