Hello, I was trying to plot multiple graph using "par(mfrow=c(3,2))". But this is giving me the following error: Error in axis(side = side, at = at, labels = labels, ...) : X11 font -adobe-helvetica-%s-%s-*-*-%d-*-*-*-*-*-*-*, face 1 at size 8 could not be loaded Could someone decode this error, please. Thank you