[R] dumpClass, hasSlot in R?

[Spencer Graves]

      Thanks to Hadley Wickham, Mar Schwartz, and Gabor Grothendieck.  
I'm skimming all 5 documents cited, and I will study them more later.  
Thanks again. 

      Best Wishes,
      Spencer Graves

Gabor Grothendieck wrote:

>Marc Schwartz <MSchwartz <at> MedAnalytics.com> writes:
>
>: 
>: On Wed, 2004-07-21 at 15:53, hadley wickham wrote:
>: > There are a few notes about difference between the R implementation
>: > and the book at http://developer.r-project.org/methodsPackage.html
>: > 
>: > I found the hardest thing to get to grips in R was method calling -
>: > using multiple dispatch (totally different to what I'm used to from
>: > Java, Python etc.).  I found this tutorial
>: > (http://www.gwydiondylan.org/gdref/tutorial.html, the sections on
>: > generic functions and multiple-dispatch) very useful.  However, it is
>: > for another programming language, and although the method and class
>: > creation process feels very similar to R, the syntax is quite
>: > different.  There is definitely scope for a similarly structured
>: > introduction to S4 classes in R.
>: > 
>: > Hadley
>: 
>: I have not done any S4 coding yet, but two references that may be of
>: interest are:
>: 
>: "Converting Packages to S4" 
>: by Doug Bates
>: R News Vol 3, No. 1, June 2003
>: http://cran.r-project.org/doc/Rnews/Rnews_2003-1.pdf
>: 
>: and 
>: 
>: "S4 Classes and Methods"
>: by Fritz Leisch
>: useR! 2004 Keynote Lecture
>: Slides available at: 
>: http://www.ci.tuwien.ac.at/Conferences/useR-2004/Keynotes/Leisch.pdf
>: 
>: HTH,
>: 
>: Marc Schwartz
>
>Also:
>
>S4 Classes in 15 pages, more or less
>http://www.bioconductor.org/develPage/guidelines/programming/S4Objects.pdf
>
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