[R] MAPE

[Luis Silva]

Hi again

With arima0 the problem was solved but what are the diferences 
between arima and arima0?

I have another question. I fit the model to the data and I make 
some predictions. But I also want to calculate MAPE based in 
the last 3 observations available. Is it possible? Can I obtain 
the fitted values from the model?

thanks~
luis
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