[R] dumpClass, hasSlot in R?
spencer.graves at pdf.com
Fri Jul 23 03:51:14 CEST 2004
Thanks to Hadley Wickham, Mar Schwartz, and Gabor Grothendieck.
I'm skimming all 5 documents cited, and I will study them more later.
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
>: "S4 Classes and Methods"
>: by Fritz Leisch
>: useR! 2004 Keynote Lecture
>: Slides available at:
>: Marc Schwartz
>S4 Classes in 15 pages, more or less
>R-help at stat.math.ethz.ch mailing list
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