Dear All, I was wondering if it's possible to create S4 function objects? (Or S4 closures, if you prefer).
i.e. An R object, that is both an S4 object, and a function. This would allow one to write: > f <- constructor4.functionobj () > f () > f...@slot.of.f I've searched for this, but I can't find any examples. If it's possible, then that leads to the question of if/how the body of f() could directly access the value of the slot? > f <- function () > t...@slot.of.f I should note that the more common approach of storing values in a function's environment, doesn't work well for top-level objects. This approach is dependent on immutability of the function's data, and I'm reluctant to create such constraints. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
