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.