[R] breaking up n object into random groups

[David Winsemius]

On Dec 2, 2011, at 10:09 AM, statfan wrote:

> say n = 100
> I want to partition this into 4 random groups wheren n1 + n2 + n3 +  
> n4 = n
> and ni is the number of elements in group i.
>

Try assigning with a sample() from:

unlist(mapply(rep, c(1:4), each=c(n1,n2,n3,n4)))

-- 

David Winsemius, MD
West Hartford, CT