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Date:         Sun, 19 Jan 1997 23:20:57 -0500
Reply-To:     tom <tjb@ACPUB.DUKE.EDU>
Sender:       "SAS(r) Discussion" <SAS-L@UGA.CC.UGA.EDU>
From:         tom <tjb@ACPUB.DUKE.EDU>
Organization: Duke University, Durham, NC, USA
Subject:      Re: [q] crossvalidation on logistic regression

In article <5bondg$f24$1@mark.ucdavis.edu>, szbchan@chip.ucdavis.edu (Benjamin Chan) wrote: > For observations in your validation sample, set a weight variable to 0. > For observations in your testing sample, set the weight to 1. Concatenate > the two datasets and run PROC LOGISTIC with the WEIGHT statement. The > model fit will exclude validation records (since these are weight by 0). > However, the OUTPUT statement calculates predicted values, xbetas, etc, on > the entire dataset.

This worked. Cool. Thanks a lot.

Tom


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