[R] combining vectors to matrices or data frames

Erich Neuwirth
Wed, 15 May 2002 16:52:26 -0000

a brute force solution would be

tmp<-c()
for(i in 1:5]){
	#some calculations for a,b,c,d,e
	a<- ... b<- ... c<- .. ....

	tmp<-c(tmp,c(a,b,c,d,e))}

m<-t(matrix(tmp,5,5))


Jan Malte Wiener wrote:

> hi,
>
> during a for(i in 1:xx]) loop I always newly calculate a vector
> (e.g. tmp<-c(a,b,c,d,e) )
> now i need that vector to be attached at the bootom of a matrix (or
> data.frame).
>
>
> e.g.
>
> m<-matrix()
>
> for(i in 1:5]){
> 	#some calculations for a,b,c,d,e
> 	a<- ... b<- ... c<- .. ....
>
> 	tmp<-c(a,b,c,d,e)
>
> 	??? now I need to attach this tmp to the matrix m ???
> }
>
> i couldn't get rbind or append to work properly
>
> thanks for advice,
> jan
>
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