tk_select.list(choices, preselect = NULL, multiple = FALSE, title = NULL)
NULL
. If non-null and
if the string(s) appear in the list, the item(s) are selected
initially.NULL
for no title.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.
select.list
implemented as a Tk
list box plus OK
and Cancel
buttons. There will be a
scrollbar if the list is too long to fit comfortably on the screen. The dialog box is modal, so a selection must be made or
cancelled before the R session can proceed. Double-clicking on an
item is equivalent to selecting it and then clicking OK
.
If Tk is version 8.5 or later, themed widgets will be used.
select.list
(a text version except on Windows and the OS X GUI),
menu
(whose graphics = TRUE
mode uses this
on most Unix-alikes).