[R] Is there anywhere recycle()?

[Gregor Gorjanc]

Hello!

I am writting a function, which should recycle one of its arguments if
length of the argument is approprate i.e. something like

foo <- function(x, a)
{
  n <- length(x)
  if(length(a) < n) { # recycle a
    oldA <- a
    a <- vector(length=n)
    a[1:n] <- oldA
  }
  ## ...
  return(a)
}

foo(c(1, 2), a=c(1, 2))
foo(c(1, 2), a=c(1))

I am now wondering if there is any general/generic functions for such task.

Thanks!

-- 
Lep pozdrav / With regards,
    Gregor Gorjanc

----------------------------------------------------------------------
University of Ljubljana     PhD student
Biotechnical Faculty
Zootechnical Department     URI: http://www.bfro.uni-lj.si/MR/ggorjan
Groblje 3                   mail: gregor.gorjanc <at> bfro.uni-lj.si

SI-1230 Domzale             tel: +386 (0)1 72 17 861
Slovenia, Europe            fax: +386 (0)1 72 17 888

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"One must learn by doing the thing; for though you think you know it,
 you have no certainty until you try." Sophocles ~ 450 B.C.