On 3/06/2008, at 1:18 AM, Federico Abascal wrote:
Hi,
This is likely an stupid question, but I cannot find the solution.
I am searching for an "exit" function, to end the execution of an R
script if some condition is not filled.
Any clue?
Others have suggested using stop(). It might be the case that the
condition not being fulfilled is not actually a sign of an error,
but simply of a different, perhaps ``marginal'' situation in which
a different sort of action or calculation is required. In which
case what you want is return().
Trivial e.g.:
foo <- function(x) {
if(any(x<=0)) return(42)
y <- sum(log(x))
y
}
cheers,
Rolf Turner
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