From prathouz at health.bsd.uchicago.edu  Sat Apr  2 06:27:42 2005
From: prathouz at health.bsd.uchicago.edu (prathouz@health.bsd.uchicago.edu)
Date: Sat Apr  2 06:27:49 2005
Subject: [Rd] print.glm() signif digits (PR#7765)
Message-ID: <20050402042742.3D4F2C711@slim.kubism.ku.dk>

Hi -- I have found that by default the function print.glm() uses 3
significant figures when printing out null and model deviances and the
aic.  Of course, this is not wrong.  But if a person fitted two nested
models and compared the resulting deviances obtained from print.glm(), the
resulting hypothesis test could indeed be wrong because of this rounding.
The function summary() applied to a glm object gives a more precise
printout and I think that print.glm() ought to as well by default.  Thanks
much.  -- pr

==========================================================================
Paul Rathouz, Assoc. Professor       ph   773-834-1970
Dept. of Health Studies, Rm. W-264   fax  773-702-1979
University of Chicago                prathouz@health.bsd.uchicago.edu
5841 S. Maryland Ave. MC 2007
Chicago, IL  60637


[Rd] print.glm() signif digits (PR#7765)
prathouz@health.bsd.uchicago.edu