[R] user input

Andreas Borg andreas.borg at unimedizin-mainz.de
Wed Apr 20 11:51:54 CEST 2011

Hi Ivan,

there are also data.entry() and edit(), which are more tailored to data 
frames and might look awkward for entering a single value. You could 
also take a look at CRAN, maybe there is a GUI package that does what 
you want.


Ivan Calandra schrieb:
> Dear users,
> I have looked on different sources and found different functions to 
> prompt the user to provide input. However, I couldn't find one that 
> does exactly what I'm looking for.
> select.list() and menu() are nice because a graphic window appears to 
> prompt the user. However, the user can only choose from a predefined 
> list of choices. readline() and scan() are more free in the input but 
> prompt the user in the console.
> Examples:
> a <- select.list(choices=c("0.0","0.1","0.2"), title="select number")
> a    ## I cannot choose "0.15"
> [1] "0.1"
> b <- readline(prompt="select number ")
> select number 0.2    ## in the console, not really visible
> b
> [1] "0.2"
> I would like both "free" input and a pop-up window. Is there a 
> function for this?
> Thanks in advance,
> Ivan

Andreas Borg
Medizinische Informatik

der Johannes Gutenberg-Universität
Institut für Medizinische Biometrie, Epidemiologie und Informatik
Obere Zahlbacher Straße 69, 55131 Mainz

Telefon +49 (0) 6131 175062
E-Mail: borg at imbei.uni-mainz.de

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