Menu Interaction Function

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

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'.

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)

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