Hi Brian, Take a look at ?scan
> x <- scan(file.choose(), what = 'list') Read 3 items > x [1] "010101001110101" "101010010111110" "010010100100000" > as.matrix(x) [,1] [1,] "010101001110101" [2,] "101010010111110" [3,] "010010100100000" HTH, Jorge On Tue, Oct 18, 2011 at 3:09 PM, Brian Tsai <> wrote: > hi all, > > i have a file of the following format that i want to read into a matrix: > > 010101001110101 > 101010010111110 > 010010100100000 > ... > > it has no headers or row names. > > I tried to use read.table(), but it doesn't allow me to specify nothing as > the column separator (specifying sep='' means whitespace for that > function). read.fwf doesn't seem appropriate either. > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.