[R] function call

[vincent at 7d4.com]

Gabor Grothendieck a écrit :

> Perhaps you what you want to do is to return an object
> that has a print method like this:
> f1 <- function(x) structure(c(x, x^2), class = "f1")
> print.f1 <- function(x) cat("x is", x[1], "x squared is", x[2], "\n")

Thank you Gabor for this idea.
For the moment interactive() seems enough for my need,
but I'll keep also this way in mind.