Re: [R] S4 classes in existing packages

From: Gabor Grothendieck <ggrothendieck_at_gmail.com>
Date: Mon 20 Feb 2006 - 23:35:02 EST

There are some mentioned here:

http://finzi.psych.upenn.edu/R/Rhelp02a/archive/67430.html

On 2/20/06, Robin Hankin <r.hankin@noc.soton.ac.uk> wrote:
> Hi
>
> Last year, there was a thread discussing S4 classes in existing
> packages.
>
> I'm thinking of converting one of my packages from S3 to S4
> and am having difficulty getting started.
>
> I have "Programming with data" right here, and "S4 classes in 15
> pages, more
> or less". I have also been looking at the packages that are listed
> below...
>
> ...but what I really really want is a "hello, world!" package that
> implements the track example in the Green Book and
> illustrates best practice for S4 methods.
>
> Has anyone coded up such a thing?
>
>
>
>
>
> On 1 Nov 2005, at 08:33, Pfaff, Bernhard Dr. wrote:
>
> >> Jeff Enos schrieb:
> >>
> >>> R-devel,
> >>>
> >>> I'm interested in looking at some examples of existing R packages
> >>> that
> >>> rely heavily on S4 classes to get a feel for varying styles and
> >>> package organization techniques. Could you recommend any packages
> >>> that might serve as a good starting point?
> >>>
> >>> Thanks in advance,
> >>>
> >>> Jeff
> >>>
> >>>
> >> our packages distr, distrEx, distrSim, distrTEst and RandVar are
> >> based
> >> on S4 classes and methods.
> >
> > As do many others, providing the variety of styles that the questioner
> > asked for. Those that are documented to do so include
> >
> > CoCo DBI IDPmisc Matrix RMySQL ROracle RSQLite RUnit SparseM aod
> > arules
> > boolean coin colorspace copula deal dynamicGraph fBasics(etc)
> > flexclust
> > flexmix giRaph gpclib its kappalab kernalb limma lme4 matlab monoProc
> > orientlib partsm pixmap tuneR
> >
> > on CRAM, stats4 in the R sources and most (all?) of BioC.
> >
> > --
> > Brian D. Ripley, ripley@stats.ox.ac.uk
> > Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
> > University of Oxford, Tel: +44 1865 272861 (self)
> > 1 South Parks Road, +44 1865 272866 (PA)
> > Oxford OX1 3TG, UK Fax: +44 1865 272595
> >
> >
> > Hello Jeff,
> >
> > to amend the list: in the package "urca" S4-classes are implemented
> > too.
> >
> > Best,
> > Bernhard
> >
> >
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>
> --
> Robin Hankin
> Uncertainty Analyst
> National Oceanography Centre, Southampton
> European Way, Southampton SO14 3ZH, UK
> tel 023-8059-7743
>
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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Tue Feb 21 00:50:34 2006

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