[R] Excluding/removing row and column names on text output files

From: Stropharia <stevenworthington_at_hotmail.com>
Date: Fri, 02 May 2008 18:02:23 -0700 (PDT)

Dear R users,

I've had no joy finding a solution to this online or in any of my R books. Many thanks in advance for any help you can give.

I'm seeking to output a data frame (or matrix - it doesn't matter which for my purposes) to a .txt file, but omit any row or column names. The data frame that I'm using doesn't actually have column or row names to start with as it has been coerced into its present form from a matrix. When I use:

capture.output(x, file="/Users/Desktop/Data.txt", append=TRUE)

I get the following (this is a small fraction of the actual data frame):

    1 2 3 4 5
X1 0 0 0 0 2
X2 0 0 0 2 0
X3 1 1 2 0 0

If the data frame is transformed into a matrix, I still get row and column 'names' (or at least numbers like "v1," etc.). Using the "sink" function also produces the exact same result. I've tried using "row.names=FALSE" (as you would when writing to a .csv file), in the "capture.output" function, but it doesn't work.

I would also like the remove the horizontal spaces between numbers on the same row, to produce:


But, I want each row to remain a separate entity (not be concatenated with the others). I know I can remove the blank spaces by doing Find and Replace in a text editor, but is it possible to remove the row and column names, and the row spaces, directly in R so that it outputs like the above example?



Steven Worthington
Ph.D. Candidate
New York Consortium in

Evolutionary Primatology &
Department of Anthropology
New York University
25 Waverly Place
New York, NY 10003
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