menu                  package:base                  R Documentation

Menu Interaction Function

Description:

     `menu' presents the user with a menu of choices labelled from 1 to
     the number of choices.  To exit without choosing an item one can
     select `0'.

Usage:

     menu(choices, graphics = FALSE, title = "")

Arguments:

 choices: a character vector of choices

graphics: a logical indicating whether a graphics menu should be used. 
          Currently unused.

   title: a character string to be used as the title of the menu

Value:

     The number corresponding to the selected item, or 0 if no choice
     was made.

Examples:

     switch(menu(c("List letters", "List LETTERS")) + 1,
            cat("Nothing done\n"), letters, LETTERS)

