[R] Wireframe (lattice) questions

[Christopher Adolph]

I have a few questions on formatting wireframe plots:

1.  How can I remove (or at least "white-out") the border on the plot?
(I.e., the 2-d box around the whole plotting area, not the 3-d cube).  I'm
willing to hack the code if necessary.

2.  Is it possible to suppress plotting of all sides of the cube except
for the axes?

3.  Is there a reliable way to print expressions in wireframe plots?  I'm
using the same code I use for other plots, but can't seem to get Greek
letters in the plots.  E.g.,

xlabstr <- expression(rho);

....

print(wireframe(z ~ p1 * p2,
                    data=data,
                    zoom=zoom,
                    drape = drape,
                    perspective = perspective,
                    colorkey = colorkey,
                    xlab=xlabstr,
                    ylab=ylabstr,
                    zlab=zlabstr,
                    scales = scales,
                    distance= distance,
                    screen = screen,
                    aspect = aspect,
                    scpos = scpos,
                    shade = shade,
                    shade.colors = function(cosangle, height)
                    palette.shade(cosangle, height = .5, saturation =
.05),
                    light.source = c(0, 0, 1),
                    panel.3d.wire=panel.custom
                    ));

Thanks in advance,

Chris