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From: "Jerry " <mricad@yahoo.no000spppam.com>
Newsgroups: comp.soft-sys.matlab
Subject: Re: coxphfit in Statistics toolbox
Date: Thu, 1 May 2008 17:24:04 +0000 (UTC)
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> Jerry, it really is like that.  In MATLAB, 1 is "true," 
and since the 
> argument is called "censoring" it indicates observations 
that are censored.
> 
> I've seen both usages in different references.  If you 
think there's an 
> authoritative reference that's opposite what this 
function expects, please 
> let me know.
> 

Thanks, Tom. In all the references I read (Tibshirani's 
Generalized additive models, for example, and many recent 
papers in the bioinformatics/biostat literature), it's 
defined oppositely to Matlab. But it won't matter as long 
as users notice this difference.

Since the source code is not accessible for this function, 
can you provide more specific reference on the algorithm 
used? I know two books are listed in the Matlab documents, 
is there a particular chapter describing an algorithm that 
Matlab implemented exactly?

Thanks very much.
Jerry