Date:         Thu, 7 Jan 2010 10:42:50 -0500
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 logistic: 'out of memory'
Comments: To: Christine Peloquin <christinepeloquin1@GMAIL.COM>
Content-Type: text/plain; charset=UTF-8

Christine Peloquin <christinepeloquin1@GMAIL.COM> wrote
>
>i just started a job at BU. i am running proc logistic on a dataset with
>160,000 observations (80,000 cases and 80,000 controls) - and am receiving
>an 'out of memory' message.  here is the code that i am running:
>
>proc logistic data=outf.tendon_short;
> class exposure (ref='0') / param=ref;
> strata subjid;
> model case_flag (event='1') = exposure;
>run;
>
>both the case_flag and exposure variables are dichotomous (numeric
>variables; values: 0/1).  the subjid is a 11-char variable.
>
>would anyone have a suggestion of how i could resolve this or what i should
>be looking at to further debug?

Perhaps take out the strata statement?

This looks like you are trying to run a separate logistic regression on each person

HTH

Peter

Peter L. Flom, PhD
Statistical Consultant
Website: http://www DOT statisticalanalysisconsulting DOT com/
Writing; http://www.associatedcontent.com/user/582880/peter_flom.html
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