On Tue, Oct 27, 2009 at 9:20 AM, Kaushik Krishnan <kaushik.s.krish...@gmail.com> wrote:
> $ r --vanilla < test.r >> a <- scan(what='character',n=1); a > 1: Read 0 items > character(0) > ---- > Now it's not working. Assuming this is a unix environment, the syntax '< test.r' means 'my standard input stream is the file test.r'. That's not what you want. Give R the file name as an argument and let the standard input stream remain user input: $ r --vanilla test.r 1: hello Read 1 item [1] "hello" Note that this is 'r' and not 'R'. For me this comes from the 'littler' package in Ubuntu Linux. The same thing with 'R' doesn't work: $ R --vanilla test.r ARGUMENT 'test.r' __ignored__ [banner] > [the R prompt appears] Maybe there's a way of doing this with big R, but I think littler is designed for this kind of thing. > Is there any way to make R stop for the user to enter values when > running in batch mode either by changing the way I invoke scan() or > readLines() or by using any other function? An alternative is to use the tcltk package to make a dialog for user input. Barry ______________________________________________ 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.
