a function of two arguments,
x, y,
that draws the set of horizontal bars to represent the
shingle
x.
The first half of the values in argument
x gives lower limits for the
shingle; the second half gives corresponding upper limits.
The y-coordinates range from
.5 to
n+.5 if there are
n levels
to the shingle.
xlab, ylab
character strings giving labels for the x- and y- axes.
xlim, ylim
numeric vectors of length 2 giving minimum and maximum values
for the x- and y- axes.
By default, the axes on each panel will be set up accommodate the
x and
y
values to be plotted on the panel.
aspect
aspect ratio control.
A numeric value controls each panel's physical aspect ratio
(vertical size/horizontal size).
The string
"fill" adjusts the aspect ratio so that the panel fill the
page or screen.
Graphical parameters may also be supplied as arguments to
this function (see
).
In addition, the high-level graphics arguments described under
and the arguments to
may be supplied to this function.
VALUE:
an object of class
trellis, which is automatically plotted by
print.trellis
.