Interpretations of the errors forecast server

[manuellara]

i have a question about interpretations of errors in the forecast server. When its transfoms the response varible x, for example to log(x), the diagnosis of the errors is on the response variable x or on the transfomerd responde variable log(x)?

i have this question because i did an exercise in forecast server and ets sas, where  i obtained the same parameters but not the same diagnosis of errors

thanks

[mitrov]

Your intuition is correct. The errors in FS are after back-transforming the dependent variable. That is, for the original variable x.