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First differencing and Seasonal differencing: EViews 6

Posted: Thu May 13, 2010 4:00 am
by Acidrain
I need to test ARIMA models to a monthly time-series data which is currently non-stationary. I need to run a seasonal difference *AND* a first difference, however in EViews I do not know how to do both; only one. How would I do both differences in EViews?

- Thanks.