Hi Maryam,
c(Young.list1[sample(1:20,5),],
Young.list2[sample(1:20,5),],
Young.list3[sample(1:20,5),])
# or for a more general solution
nrows<-dim(Young.list1)[1]
c(Young.list1[sample(1:nrows,nrows/4),],
Young.list2[sample(1:nrows,nrows/4),],
Young.list3[sample(1:nrows,nrows/4),])
Jim
On Wed, Jan 20, 2016 at 9:03 PM, maryam firoozi <
firoozi_maryam6...@yahoo.com> wrote:
> thanks for repling.can you help me how to select randomely 25% from three
> mattix and put it in a vector.
>
>
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
