Hi Nate, There may be better ways, but on the couple instances I've wanted to wait for keyboard input I used this type of paradigm:
foo <- function() { x <- 1:10 y <- rnorm(10) input <- NA while(!isTRUE(input == "1") && !isTRUE(input == "2")) { cat("Please type '1' if you want the first variable on the x axis and '2' if you want the second.", fill = TRUE) input <- scan("", what = "character") if(input == "1") { plot(x, y) } else if (input == "2") { plot(y, x) } else {cat("Sorry, I didn't catch that", fill = TRUE)} } } Perhaps it will be of some use to you. Best regards, Josh On Mon, Nov 22, 2010 at 11:13 AM, Nathan Miller <natemille...@gmail.com> wrote: > Hello, > > I am trying write a script that includes a prompt for user input using > readlines(). I am running into the problem that when I run readlines() as a > single line the prompt works perfectly, but when I try to run a block of > code which includes the readline function, the script doesn't wait for the > user input. I have seen this question posted before when I did a search, but > I didn't find an suitable answer. Is there a means of ensuring that the > script does not proceed until a value has been entered to readline(). Can I > put readline in a function that will wait for input? > > Are there other options for getting user input that allow require that the > script wait for user input? > > Thanks for your help, > > Nate > > [[alternative HTML version deleted]] > > ______________________________________________ > 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. > -- Joshua Wiley Ph.D. Student, Health Psychology University of California, Los Angeles http://www.joshuawiley.com/ ______________________________________________ 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.