On 05/02/2010 4:31 AM, Jonne Zutt wrote:
Dear all,I've found this nice code fragment on the web (from Jan T. Kim if I'm correct): hitReturn <- function(msg) { invisible(readline(sprintf("%s -- hit return", msg))); } But it does not seem to work in non-interactive mode ( I mean, when I start a script like this: R --vanilla < script.R ) It simply continues, I guess the stdin is not connected?
stdin is connected to script.R. That's what the input redirection does.
Does somebody know how to make it work.
You need to find some other way to communicate with R besides stdin, either for your script or for your response to the request to wait. It's probably easiest to do the former. Just start R --vanilla, then type source("script.R"). Then stdin is still your terminal, and the hitReturn function will work.
Duncan Murdoch
My script plots a few graphs (in X11 windows) and I don't want them to disappear immediately. A Sys.sleep(infinite) would probably work, but I thought there might be a better solution? Thanks, Jonne. ______________________________________________ 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.
______________________________________________ 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.
