See par for more details on each parameter.
sspar(
mfrow = c(1, 1),
plot.cex = 1,
mai = c(0.55, 0.6, 0.1, 0.1),
omi = c(0, 0, 0, 0) + 0.1,
labs = TRUE
)
determines plot frame set up
cex graphic option
graphical par for plot margins
Outer margins in lines of text.
if TRUE margins are narrow