[R] combine variables to matrix

Moshe Olshansky m_olshansky at yahoo.com
Wed Dec 12 23:50:48 CET 2007


You can always make a loop (V1 corresponds to column
1, etc.) but as.matrix() is simpler, i.e. in your case

data.matrix <- as.matrix(data)

--- Andre Jung <ajung at gfz-potsdam.de> 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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> PLEASE do read the posting guide
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> and provide commented, minimal, self-contained,
> reproducible code.
>



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