write.matrix {MASS}
Write a Matrix or Data Frame
Description
Writes a matrix or data frame to a file or the console, using column labels and a layout respecting columns.
Usage
write.matrix(x, file = "", sep = " ", blocksize)
Arguments
- x
- matrix or data frame.
- file
- name of output file. The default (
"") is the console. - sep
- The separator between columns.
- blocksize
- If supplied and positive, the output is written in blocks of
blocksizerows. Choose as large as possible consistent with the amount of memory available.
Details
If x is a matrix, supplying blocksize is more memory-efficient and enables larger matrices to be written, but each block of rows might be formatted slightly differently.
If x is a data frame, the conversion to a matrix may negate the memory saving.
Side Effects
A formatted file is produced, with column headings (if x has them) and columns of data.
References
Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.
See Also
Documentation reproduced from package MASS, version 7.3-26. License: GPL-2 | GPL-3