[R] Loop problem

[Dimitris Rizopoulos]

try this:

pk <- matrix(rnorm(12), 4, 3)
matrix(rep(pk[1, ], each = 4), 4)


I hope it helps.

Best,
Dimitris

----
Dimitris Rizopoulos
Biostatistical Centre
School of Public Health
Catholic University of Leuven

Address: Kapucijnenvoer 35, Leuven, Belgium
Tel: +32/(0)16/336899
Fax: +32/(0)16/337015
Web: http://med.kuleuven.be/biostat/
     http://www.student.kuleuven.be/~m0390867/dimitris.htm


----- Original Message ----- 
From: "fernanda lopez" <lopezfer123 at gmail.com>
To: <R-help at stat.math.ethz.ch>
Sent: Monday, July 14, 2008 10:33 AM
Subject: [R] Loop problem


> Dear all,
>             I want to
> write   ck<-cbind(rep(pk[1,1],4),rep(pk[1,2],4),rep(pk[1,3],4)) 
> state ment
> in a loop . How can I write it ?
>
>
>
>
>
>> pk
>           [,1]      [,2]       [,3]
> [1,] -1.1354816 0.9808877 -0.9446314
> [2,]  0.7787378 0.4536944  0.3204882
> [3,] -1.7274907 1.5112011  1.4481839
> [4,]  1.0629145 0.5976109 -0.5277638
>
>
>
>> pk<-matrix(rnorm(12),nrow=4,ncol=3)
>> pk
>           [,1]      [,2]       [,3]
> [1,] -1.1354816 0.9808877 -0.9446314
> [2,]  0.7787378 0.4536944  0.3204882
> [3,] -1.7274907 1.5112011  1.4481839
> [4,]  1.0629145 0.5976109 -0.5277638
>
>> ck<-cbind(rep(pk[1,1],4),rep(pk[1,2],4),rep(pk[1,3],4))
>> ck
>          [,1]      [,2]       [,3]
> [1,] -1.135482 0.9808877 -0.9446314
> [2,] -1.135482 0.9808877 -0.9446314
> [3,] -1.135482 0.9808877 -0.9446314
> [4,] -1.135482 0.9808877 -0.9446314
>
>
> Thanks for your help
>
> Fernanda Lopez
> Netherlands
>
> [[alternative HTML version deleted]]
>
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