Date: Wed, 8 Dec 2004 14:22:50 -0500
Reply-To: "Li,Qian [Ontario]" <Qian.Li@EC.GC.CA>
Sender: "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From: "Li,Qian [Ontario]" <Qian.Li@EC.GC.CA>
Subject: Validating a regression model
Content-Type: text/plain; charset="us-ascii"
Dear SAS-L,
I am using multiple stepwise regression to develop a prediction model.
The procedure I am using is Proc Reg. Dataset is separated into
Development_data and Validation_data.
proc reg data=development_data outest=beta;
model pollutant = &predtors/vif
selection=stepwise
slentry=0.05
slstay=0.05
rsquare;
run;
My question here is, instead of using the "outest" file to test the
validation dataset, is there any "better" way to validate the model
using a new dataset? Or is there any similar statement such as SCORE
statement in Logistic Procedure?
Thanks,
Qian
|