[R] dumpClass, hasSlot in R?

[Gabor Grothendieck]

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