Provides the same functionality as choose.dir from utils
package, but relies on Java and rJava package and
therefore is system independent provided Java 1.5 and
higher is installed.
Which filename or directory to show
initially. Default is current work directory.
caption
The caption on the file selection dialog
modal
Indicates how the modality of the dialog is
implemented. If TRUE, the modal dialog is used and if
FALSE, R repeatedly checks for dialog status (active or
not). The latter is used to refresh R Gui window on
Windows. Default is canUseJavaModal().
Value
A character vector giving zero or more file paths. If
user cancels operation, character(0) is returned.
Note
jchoose.dir() is called internally by rchoose.dir() if
it's appropriate for a given platform/graphics
combination. Calling jchoose.dir() directly forces the
package to use Java based dialog regardless of system
capabilities and therefore may fail. Use the direct call
to jchoose.dir() only if it seems beneficial to bypass
the rchoose.dir() decision logic.