Date: Mon, 17 Sep 2007 21:06:09 +0530
Reply-To: meesum kazmi <meesumkazmi@GMAIL.COM>
Sender: "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From: meesum kazmi <meesumkazmi@GMAIL.COM>
Subject: Query for time series forecasting
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Hi All,
I have been trying to build a time series ARIMA model to predict the volume
of a product and i am getting a list of warnings
*Warning: The ID value for observation 2 is the same as the ID value for the
last observation according to ID variable DATE.*
not sure what exactly do we mean by this ? can somebody help me get rid of
this warning mesage?
The other question that i have. Is there a way to add other explantory
variables (Like if i want to predict volume and i want to add price and a
dummy variables for time which has a sudden jump in volume eg week of july 4
or new year etc) .
Any help would be highly appreciated
Best Regards
Meesum