| 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. |
This brings up a modal dialog box with a (scrollable) list of items,
which can be selected by the mouse. If multiple is true,
further items can be selected or deselected by holding the control key
down whilst selecting, and shift-clicking can be used to select
ranges.
Normal termination is via the OK button or by hitting Enter.
Selection can be aborted via the Cancel button or pressing Escape.
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)