Hi, On Jul 24, 2009, at 11:12 AM, <mau...@alice.it> <mau...@alice.it> wrote:
I learnt from this forum to test for EOF reached with fiunction readLines as follows:con <- file("MyFle.txt","r") repeat { line <- readLines(con,n=1) if (length(line) == 0) break } It works fine if I read one line at a time.Since now I have a huge file so that it would take forever to read one line at a time, I wonder how to test for EOF whenreading blocks of,say, 100 lines at a time.Will the following work ? con <- file("MyFle.txt","r") repeat { line <- readLines(con,n=100) if (length(line) < 100) break }
I'm guessing that by now you've already rigged up a small 10 line text file and set n to be less than (but not a factor of) 10 to test this and see for yourself, no?
-steve -- Steve Lianoglou Graduate Student: Computational Systems Biology | Memorial Sloan-Kettering Cancer Center | Weill Medical College of Cornell University Contact Info: http://cbio.mskcc.org/~lianos/contact ______________________________________________ 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.
