[R] Size argument in sample function

Joshua Wiley jwiley.psych at gmail.com
Sat Jun 18 00:28:31 CEST 2011


Hi,

There is nothing sacrosanct about taking a random sample of size 1 then 2 then 3 versus just taking one random sample of size 6 (with replacement, if you like) and then just use the first element, elements 2:3 and elements 4:6.

HTH,

Josh

On Jun 17, 2011, at 6:59, alfredo <alfredotello at gmail.com> wrote:

> Hi All,
> 
> I'd like to randomly sample a vector N times, where each successive random
> sample increases in size. I have realised that the function sample does not
> take vectors for arguments. For example,
> 
> x<-rnorm(20,0,1)
> sample(x,c(1,2,3)) ## will only return one random sample of size 1. 
> 
Dat <- sample(x, 6)

Dat[1]
Dat[2:3]
Dat[4:6]

> The trick seems to be getting past the size argument of the function. I've
> tried different things without success. Any help would be most appreciated!
> 
> Thanks,
> 
> A
> 
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