Re: [R] repeated vector in matrix

From: Peter Dalgaard <p.dalgaard_at_biostat.ku.dk>
Date: Thu 02 Jun 2005 - 22:23:31 EST

"Friedrich, Andreas (dit)" <Andreas.Friedrich@dit.de> writes:

> Hallo,
>
> I'll need a matrix with n rows of the an identical vector.
>
>
>
> > h
> [1] 3 3 3 3 2 2 2
>
>
> The nmatrix should look like this:
>
> > x<-rbind(h,h,h)
> > x
> [,1] [,2] [,3] [,4] [,5] [,6] [,7]
> h 3 3 3 3 2 2 2
> h 3 3 3 3 2 2 2
> h 3 3 3 3 2 2 2
>
>
>
> but I need n rows which must be variable. Can anyone help me?

Like this, for instance:

> h<-c(3, 3, 3, 3, 2, 2, 2)
> n<-5
> matrix(h, nrow=n, ncol=length(h), byrow=TRUE)

     [,1] [,2] [,3] [,4] [,5] [,6] [,7]

[1,]    3    3    3    3    2    2    2
[2,]    3    3    3    3    2    2    2
[3,]    3    3    3    3    2    2    2
[4,]    3    3    3    3    2    2    2
[5,]    3    3    3    3    2    2    2


-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk)             FAX: (+45) 35327907

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