Read Matrix Data
Reads a matrix data file.
read.matrix(file, header = FALSE, sep = "", skip = 0)
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. |
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.
A. Trapletti
x <- matrix(0, 10, 10)
write(x, "test", ncolumns=10)
x <- read.matrix("test")
x
unlink("test")Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.