See below.
On Thu, 2005-02-10 at 14:53 -0800, T. Murlidharan Nair wrote:
> Just to explain my previous mail, here is the output I get.
>
>
> > dim(tissue.exp)
> [1] 1532 20
What is this object ? Try class(tissue.exp)
> > pick<-sample(tissue.exp,5,replace=TRUE)
> > dim(pick)
> [1] 1532 5
>From help(sample) :
sample(x, size, replace = FALSE, prob = NULL)
x: Either a (numeric, complex, character or logical) vector of
more than one element from which to choose, or a positive
integer.
x has to be a vector or positive integer integer. I am not sure how you
got "sample" to work on tissue.exp in the first place. Maybe you got
your own version of "sample".
> > tissue.exp.t<-t(tissue.exp)
> > dim(tissue.exp.t)
> [1] 20 1532
> > pick<-sample(tissue.exp.t,5,replace=TRUE)
> > dim(pick)
> NULL
>
> --------
> Thanks ../Murli
>
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