[R] newbie question: how to read a file into a matrix
Sundar Dorai-Raj
sundar.dorai-raj at PDF.COM
Thu Aug 26 18:18:42 CEST 2004
Gaby Aguilera wrote:
> I am trying to read a file with 8 columns and about 200 rows into a
> matrix. I tried something like:
> x<-matrix(data="data.txt", nrow=200, ncol=8) but this produces a
> matrix with "data.txt" in it. Is there a way to read the data in?
>
> Any pointers in the right direction would be appreciated. Thank you!
>
You should read "R Data Import/Export" (and the posting guide).
http://cran.r-project.org/doc/manuals/R-data.pdf
What you are looking for is ?read.table or ?scan. Also read ?matrix
while you are at it.
x <- matrix(scan("data.txt"), nrow = 200, ncol = 8)
--sundar
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