| select.list {utils} | R Documentation |
Select item(s) from a character vector.
select.list(list, preselect = NULL, multiple = FALSE, title = NULL)
list |
character. A list of items. |
preselect |
a character vector, or NULL. If non-null and
if the string(s) appear in the list, the item(s) are selected
initially. |
multiple |
logical: can more than one item be selected? |
title |
optional character string for window title. |
Under the AQUA interface for MacOS X this brings up a modal dialog box with a (scrollable) list of items, which can be selected by the mouse.
Otherwise it displays a text list from which the user can choose by
number(s). The multiple = FALSE case uses menu.
Preselection is only supported for multiple = TRUE, where it is
indicated by a "+" preceding the item.
A character vector of selected items. If multiple is false and
no item was selected (or Cancel was used), "" is
returned. If multiple is true and no item was selected (or
Cancel was used) then a character vector of length 0 is returned.
menu, tk_select.list for a graphical
version using Tcl/Tk.
## Not run: select.list(sort(.packages(all.available = TRUE))) ## End(Not run)