[R] combine variables to matrix
Julian Burgos
jmburgos at u.washington.edu
Wed Dec 12 19:02:41 CET 2007
Hi Andre,
I don't quite understand what you are trying to do. Why you are using
cbind to join columns of a dataset that it is already in table form? It
is true that read.table will give you a data.frame instead of a matrix,
but if for some reason you need a matrix you can do simply
data.matrix=as.matrix(data)
Julian
Andre Jung wrote:
> I just got stuck with a quite simple question. I've just read in an
> ASCII table from a plain text file with read.table(). It's a 1200x1200
> table. R has assigned variables for each column: V1,V2,V3,V4,...
> For small data sets
>
> data <- read.table("data.txt");
> data.matrix <- cbind(V1,V2,V3);
>
> works. But how could I put together 1200 columns?
>
> I've searched the R mailing help and stumbled upon this entry:
> https://stat.ethz.ch/pipermail/r-help/2007-July/137121.html
> which doesn't help me.
>
> thanks for your help.
>
> andre
>
>
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