You could use return(), e.g.,
myFun <- function (x, max.iter = 5) {
for (i in 1:10) {
result <- x + i
iter <- i
if (iter == max.iter) {
return(result)
}
}
result
}
myFun(10, max.iter = 4)
I hope it helps.
Best,
Dimitris
On 10/11/2011 7:31 PM, Doran, Harold wrote:
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
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--
Dimitris Rizopoulos
Assistant Professor
Department of Biostatistics
Erasmus University Medical Center
Address: PO Box 2040, 3000 CA Rotterdam, the Netherlands
Tel: +31/(0)10/7043478
Fax: +31/(0)10/7043014
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