[R] Extracting Element from S4 objects

tbigdeli tbigdeli at gmail.com
Sun May 3 00:30:50 CEST 2009

Good point, I've updated since.

Now, would solutions be specific to newer versions?  I need to make a
numerical comparison upon each iteration of independence_test().  With
chisq.test(), etc the output is as.list().  I imagine this difference is a
reflection of the author's coding preferences.

Now, I could code a Cochran-Armitage trend test but that wouldn't do our
great support community justice now, would it? :)

David Winsemius wrote:
> I don't think very many of us have a version that is quite that old.
> Sorry;
> David.
> On Apr 29, 2009, at 4:37 PM, tbigdeli wrote:
>> Are there internal methods available for R2.6 (I'm using the mac os  
>> x gui)
>> for extracting (or subsetting) S4 objects?
>> Using the independence_test() function implemented in the COIN  
>> package, I
>> can't seem to select out p-values upon completion of each iteration  
>> of a
>> loop.
>> Sorry if my search was incomplete beforehand.
>> -- 
> David Winsemius, MD
> Heritage Laboratories
> West Hartford, CT
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