countLines: Counts the number of lines in a text file
Description
Counts the number of lines in a text file by count 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.Usage
## S3 method for class 'default}(file, chunkSize=5e+07, ...)':
countLinesundefined
- file
{A connection
or a pathname.}
- chunkSize
{The number of bytes read in each chunk.}
- ...
{Not used.}
Returns an non-negative integer
.
[object Object]
pathname <- system.file("NEWS", package="R.utils");
n <- countLines(pathname);
n2 <- length(readLines(pathname));
stopifnot(n == n2);
[1] Page Newline, Wikipedia, July 2008.
http://en.wikipedia.org/wiki/Newline
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