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missed data points

Posted: Mon Dec 04, 2017 1:36 am
by NadineDessouky
Dear All

I have a problem that needs your help pls. I have a quarterly time series from 2005:3 till 2016:1 , I need to go back with the series to start from 2002:1, knowing that I already have the annual observations for the missed part. How could this be done?