Dear R users,
I have a large individual-level dataset (~700,000 records) which I am
performing a conditional logistic regression on. Key variables include
the dichotomous outcome, dichotomous exposure, and the stratum to which
each person belongs.
Using this individual-level dataset I can
Birth Defects Branch
U.S. Centers for Disease Control and Prevention
-Original Message-
From: Charles C. Berry [mailto:[EMAIL PROTECTED]
Sent: Thursday, May 31, 2007 1:12 PM
To: Strickland, Matthew (CDC/CCHP/NCBDDD) (CTR)
Cc: r-help@stat.math.ethz.ch; [EMAIL PROTECTED]
Subject: Re: [R
