[R] (no subject)
    Jim Lemon 
    drjimlemon at gmail.com
       
    Wed Jan 20 23:59:26 CET 2016
    
    
  
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_maryam6858 at 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]]
    
    
More information about the R-help
mailing list