Quantile-quantile plot in 2d using R's base graphics
qq_2d_graphics(
  zargs,
  do.line = TRUE,
  lines... = NULL,
  cex = 0.4,
  box = FALSE,
  add = FALSE,
  group... = NULL,
  plot... = NULL,
  ...
)invisible()
argument list as passed from zenplot()
logical indicating whether a line is drawn (through both empirical c(0.25, 0.75)-quantiles)
additional arguments passed to lines()
character expansion factor
logical indicating whether a box should be drawn
logical indicating whether this plot should be added to the last one
list of arguments passed to group_2d_graphics (or NULL)
additional arguments passed to plot_region()
additional arguments passed to qqplot()
Marius Hofert and Wayne Oldford
Other default 2d plot functions using R's base graphics: 
arrow_2d_graphics(),
axes_2d_graphics(),
density_2d_graphics(),
group_2d_graphics(),
label_2d_graphics(),
points_2d_graphics(),
rect_2d_graphics()
Other default 2d plot functions: 
arrow_2d_graphics(),
arrow_2d_grid(),
arrow_2d_loon(),
axes_2d_graphics(),
axes_2d_grid(),
axes_2d_loon(),
density_2d_graphics(),
density_2d_grid(),
density_2d_loon(),
extract_2d(),
group_2d_graphics(),
group_2d_grid(),
group_2d_loon(),
label_2d_graphics(),
label_2d_grid(),
label_2d_loon(),
points_2d_graphics(),
points_2d_grid(),
points_2d_loon(),
qq_2d_grid(),
rect_2d_graphics(),
rect_2d_grid(),
rect_2d_loon()