adorn
list of character strings containing commands to be
executed for the panels. If the number matches the number of
panels, then the strings are applied to the appropriate panels, as
they are drawn from top-left to bottom-right. If only a sing
mgp
3-element numerical vector to use for par(mgp)
, and
also for par(mar)
, computed from this. The default is
tighter than the R default, in order to use more space for the data
and less for the axes.