> I was looking for a fast line counter as well a while ago and ended up > writing a small function in R: > > countLines() in the R.utils package > > At least at the time, it was faster than readLines() [for unknown > reasons]. It is also more memory efficient. It supports connections. > I don't think it beats a system call to 'wc', though. When there > will be a faster solution available, it'll be calling that instead. > It does not avoid reading the file twice.
Perfect - exactly what I was looking for. Thanks! Hadley -- http://had.co.nz/ ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
