panel.contourplot(x, y, z, subscripts, ...)
panel.levelplot(x, y, z, subscripts, ...)
ARGUMENTS:
x
x coordinates of points to be plotted.
y
y coordinates of points to be plotted.
z
z coordinates of all points.
z[subscripts] gives the sets of
z values corresponding to
x and
y.
subscripts
a vector of subscripts, that tells where in the overall data,
the selected
x
and
y observations originate.
...
graphical parameters that are passed to
lines.
By default,
the trellis parameter list
add.line
will be used to control line width (
lwd),
line type (
lty),
and color (
col) for the contour lines.
By default, the
add.text parameters
will be used to control character expansion (
cex),
color (
col),
and font for contour line labels.
SIDE EFFECTS:
A contour plot or levelplot is drawn on the display.