Check whether current R session supports X11 or not.
Contrary to capabilities("X11")
which only checks for X11
support on startup [1], this function checks whether X11 is supported
when it is called. This is done by querying a temporary R session.
capabilitiesX11(reset=FALSE, ...)
If TRUE
, any previously obtained results are ignored,
otherwise not.
(optional) character
strings of command-line options
to Rscript
.
[1] R-devel thread 'capabilities("X11"): Force refresh from within R? (... and minor documentation issue)' on 2015-05-06, https://stat.ethz.ch/pipermail/r-devel/2015-May/071100.html