[R] stop()

Greg Snow
Tue, 11 Oct 2011 20:27:12 -0000

Replace "stop()" with "break" to see if that does what you
want.  (you may also want to include "cat()" or "warn()" to
indicate the early stopping.

--
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow at imail.org
801.408.8111


> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of Doran, Harold
> Sent: Tuesday, October 11, 2011 11:32 AM
> To: r-help at r-project.org
> Subject: [R] stop()
>
> Suppose I have a function, such as the toy example below:
>
> myFun <- function(x, max.iter = 5) {
>                for(i in 1:10){
>                result <- x + i
>                iter <- i
>                if(iter == max.iter) stop('Max reached')
>                }
>                result
>                }
>
> I can of course do this:
> myFun(10, max.iter = 11)
>
> However, if I reach the maximum number of iterations before my
> "algorithm" has finished (in my real application there are EM
steps for
> a mixed model), I actually want the function to return the value of
> "result" up to that point. Currently using stop(), I would get
>
> > myFun(10, max.iter = 4)
> Error in myFun(10, max.iter = 4) : Max reached
>
> But, in this toy case the function should return the value of
"result"
> up to iteration 4.
>
> Not sure how I can adjust this.
>
> Thanks,
> Harold
>
>
>
> 	[[alternative HTML version deleted]]
>
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