Hi All, I have been new with forecasting procedures in SAS. I have been forecasting my data based on 60 data points that I have from Jan'11 to Dec'15 (Monthly data). I am using "outfitstats" option to calculate the stats for my results. Now this option calculates MAPE based on residuals of all 60 data points nowever I just want to calculate MAPE using just last 6 or 12 Datapoint . Is there a way to limit the datapoints for these stats calculation Thanks Dinesh
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