I have used the shiny package to create a web page user interface and it works well.
Bernard Sent from my iPhone so please excuse the spelling!" > On Apr 19, 2019, at 1:12 AM, Luigi Marongiu <marongiu.lu...@gmail.com> wrote: > > I am realizing as well that R is not the best option for an > interactive session. I changed the script to get the input from a > config file; it is less elegant because the procedure now requires > double the files than with CLI input, but at the end of the day is > more practical when most of the answer remains the same between > sessions. Thanks. > >> On Thu, Apr 18, 2019 at 8:47 PM Greg Snow <538...@gmail.com> wrote: >> >> I am not an expert on Rscript, but I don't think that an actual >> terminal is ever used when using Rscript. And `interactive()` will >> probably always be false. >> >> So if you want the script to pause for input, you need to have some >> form of user interface to work with. >> >> One option is to use the tcltk package (this works on all OS's to my >> knowledge, but not if you are accessing the computer remotely). This >> answer on stack overflow shows some code that may help: >> https://stackoverflow.com/questions/16847621/get-data-out-of-a-tcltk-function/16847918#16847918 >> >> >>> On Thu, Apr 18, 2019 at 8:11 AM Luigi Marongiu <marongiu.lu...@gmail.com> >>> wrote: >>> >>> Dear all, >>> I am trying to write an interactive script where the user type some >>> input from the terminal. I used readline() but when I launch the file >>> with Rscript, the function is overwritten directly, there is no >>> waiting for the user's input. For instance, this example: >>> >>> VAR1 = as.numeric(readline(prompt = "Enter something -> ")) >>> VAR2 = as.numeric(readline(prompt = "Enter something else -> ")) >>> if(is.na(VAR1)) VAR1 = 0 >>> if(is.na(VAR2)) VAR2 = "empty" >>> cat("Input was: ", VAR1, " - ", VAR2, "\n") >>> >>> is executed till the end without typing anything on terminal : >>> >>> $ Rscript test.R >>> Enter something -> >>> Enter something else -> >>> Input was: 0 - empty >>> >>> I also tried with ',1' at the end of readline, but the effect is the >>> same. I should use the interactive() function but I am confused on its >>> use. >>> It is possible to launch R scritps in the interactive mode in the >>> first place? and if yes, how? Or would python or julia be better >>> choices in this case? >>> Thank you. >>> -- >>> Best regards, >>> Luigi >>> >>> ______________________________________________ >>> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >>> 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. >> >> >> >> -- >> Gregory (Greg) L. Snow Ph.D. >> 538...@gmail.com > > > > -- > Best regards, > Luigi > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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 -- To UNSUBSCRIBE and more, see 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.