[R] Rbind help needed

[Robin Hankin]

Hello Mick

Try this:

> a <- matrix(1:4,2,2)
> a
     [,1] [,2]
[1,]    1    3
[2,]    2    4
> kronecker(rep(1,3),a)
     [,1] [,2]
[1,]    1    3
[2,]    2    4
[3,]    1    3
[4,]    2    4
[5,]    1    3
[6,]    2    4
> 

rksh



> 
> Dear list
> 
> I have a very simple question which is causing me problems!
> 
> I have a matrix A and simply want to rbind this matrix together n times (n is a large number)
> How can I write this in R?
> I know I could do new<-rbind(z,z,z,...z) with z written n times but this will take forever as n is so large.
> 
> Is there a simple way to write this?
> 
> Cheers 
> Mick


-- 

Robin Hankin, Lecturer,
School of Geography and Environmental Science
Tamaki Campus
Private Bag 92019 Auckland
New Zealand

r.hankin at auckland.ac.nz
tel 0064-9-373-7599 x6820; FAX 0064-9-373-7042

as of: Thu Nov 28 08:44:01 NZDT 2002
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