Date:         Tue, 7 Oct 2008 18:04:49 -0400
Reply-To:     Peter Flom <peterflomconsulting@mindspring.com>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Peter Flom <peterflomconsulting@MINDSPRING.COM>
Subject:      Re: proc stepdisc
Comments: To: nchapinal@YAHOO.COM
Content-Type: text/plain; charset=UTF-8

In that case, in addition to the other problems, you should know that discriminant analysis assumes sphericity of the data (sort of like multivariate normality)

I think LOGISTIC is usually better

Peter

-----Original Message-----
>From: nchapinal@YAHOO.COM
>Sent: Oct 7, 2008 5:15 PM
>To: SAS-L@LISTSERV.UGA.EDU
>Subject: proc stepdisc
>
>I am using proc stepdisc to know which are the best predictors to
>distinguish between healthy and sick people.
>I know more or less how to do it. However, someone told me you can
>add
>an option that tells you how accurate is each particular predictor
>that you keep in the model in classifying people in the right
>category


Peter L. Flom, PhD
Statistical Consultant
www DOT peterflom DOT com