Panel Function for plot.shingle

USAGE:

panel.plot.shingle(x, y, ...) 

ARGUMENTS:

x
vector that gives the minimum and maximum values for each level of a shingle; all minimum values are first, followed by all maximum values. There are always an even number of x values, since they come in min/max pairs.
y
vertical coordinates of the rectangles.
...
graphical parameters can be passed to the line-drawing code. By default, parameter col is used from trellis parameter list bar.fill.

SIDE EFFECTS:

panel.plot.shingle draws horizontal rectangles to represent the range of x values in each level of a factor or shingle.

SEE ALSO:

.