countLines

From R.utils v1.12.0 by Henrik Bengtsson

Counts the number of lines in a text file

Counts the number of lines in a text file by counting the number of occurances of platform-independent newlines (CR, LF, and CR+LF [1]), including a last line with neither. An empty file has zero lines.

Keywords: programming

Usage

## S3 method for class 'default':
countLines(file, chunkSize=5e+07, ...)

Arguments

file: A connection or a pathname.
chunkSize: The number of bytes read in each chunk.
...: Not used.

Value

Returns an non-negative integer.

References

[1] Page Newline, Wikipedia, July 2008. http://en.wikipedia.org/wiki/Newline

Examples

pathname <- system.file("NEWS", package="R.utils");
n <- countLines(pathname);
n2 <- length(readLines(pathname));
stopifnot(n == n2);

Documentation reproduced from package R.utils, version 1.12.0, License: LGPL (>= 2.1)

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