Re: [R] A model package that uses S4 methods and name spaces?

From: Peter Dalgaard <p.dalgaard_at_biostat.ku.dk>
Date: Sat 14 May 2005 - 18:26:40 EST

Prof Brian Ripley <ripley@stats.ox.ac.uk> writes:

> On Fri, 13 May 2005, Douglas Bates wrote:
>
> > rlee@fpcc.net wrote:
> >> I'd like to try and rewrite my package to take advantage of S4 methods and
> >> name spaces. I am presuming that S4 methods and name spaces will help me
> >> write and maintain my package.
> >>
> >> Can someone suggest a "model" package that uses best practices for mixing
> >> S3, S4 methods and name spaces? Preferably a package with multiple R
> >> source files.
> >
> > It doesn't mix S3 and S4 but the Matrix package is a large package based
> > on S4 that does show the use of S4 and a NAMESPACE. On a smaller scale,
> > the lme4 package also uses S4 and a NAMESPACE.
>
> The stats4 package in the distribution is intended to be a model in
> the sense I think we were asked for. It is much smaller than Doug's
> examples.

Yes. It doesn't offer much in terms of class hierarchies and the like, though. On the other hand, newcomers to S4 might actually want to avoid that on first contact.

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk)             FAX: (+45) 35327907

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Received on Sat May 14 18:34:03 2005

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