Sampling with conditions
Not sure this is valid that you can have 9 random samples out of 10, but the last one has to be fixed to meet the restraint, sum=10. Weidong
On Mon, Nov 7, 2011 at 5:22 PM, SarahJoyes <sjoyes at uoguelph.ca> wrote:
Hey everyone,
I am at best, an amateur user of R, but I am stuck on how to set-up the
following situation.
I am trying to select a random sample of numbers from 0 to 10 and insert
them into the first column of a matrix (which will used later in a loop).
However, I need to have those numbers add up to 10. How can I set those
conditions?
So far I have:
n<-matrix(0,nr=5,ncol=10)
for(i in 1:10){n[i,1]<-sample(0:10,1)}
How do I set-up the "BUT sum(n[i,1])=10"?
Thanks
SarahJ
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