Skip to content
Back to formatted view

Raw Message

Message-ID: <1124399671.26136.5.camel@iron.libaux.ucsf.edu>
Date: 2005-08-18T21:14:31Z
From: Ross Boylan
Subject: Use of contains in S4 classes

setClass("B", representation=representation("B", extra="numeric))
setClass("B", representation=representation(extra="numeric"),
	contains="B")
Are these the same?  If not, how do they differ?

What about
setClass("B", representation=representation("B", extra="numeric"),
	contains="B")
?

As far as I can tell, the Green Book doesn't talk about a contains
argument to setClass.
-- 
Ross Boylan                                      wk:  (415) 502-4031
530 Parnassus Avenue (Library) rm 115-4          ross at biostat.ucsf.edu
Dept of Epidemiology and Biostatistics           fax: (415) 476-9856
University of California, San Francisco
San Francisco, CA 94143-0840                     hm:  (415) 550-1062