[R] random samples

[Liaw, Andy]

See ?setdiff.

Andy

> From: nicolas.deig at epfl.ch
> 
> hi,
> I am encoutering a very little problem that seemed to be so 
> easy to solve....
> I need to divide the array
> 
> > A<-c(1:200)
> 
>  into two subsets at random. Therefore I use the function 
> "sample" in R:
> 
> > S<-sample(A,100)
> 
>  for a random sample of size 100. Then I need the values in A 
> that are not
> selected in S to be put in another array, there is my problem!
> Is there anyway to do this with a function of R or should I 
> do one by myself?
> 
> Thanks in advance
> Nicolas
> 
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