read.matrix
From tseries v0.10-47
by Kurt Hornik
Read Matrix Data
Reads a matrix data file.
Usage
read.matrix(file, header = FALSE, sep = "", skip = 0)Arguments
- file
the name of the file which the data are to be read from.
- header
a logical value indicating whether the file contains the names of the columns as its first line.
- sep
the field separator character. Values on each line of the file are separated by this character.
- skip
the number of lines of the data file to skip before beginning to read data.
Details
Usually each row of the file represents an observation and each column contains a variable. The first row possibly contains the names of the variables (columns).
read.matrix might be more efficient than
read.table for very large data sets.
See Also
Examples
# NOT RUN {
x <- matrix(0, 10, 10)
write(x, "test", ncolumns=10)
x <- read.matrix("test")
x
unlink("test")
# }
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