Usage
prepanel.default.bwplot(x, y, horizontal, nlevels, origin, stack, ...)
prepanel.default.histogram(x, breaks, equal.widths, type, nint, ...)
prepanel.default.qq(x, y, ...)
prepanel.default.xyplot(x, y, type, subscripts, groups, ...)
prepanel.default.cloud(perspective, distance,
xlim, ylim, zlim,
screen = list(z = 40, x = -60),
R.mat = diag(4),
aspect = c(1, 1), panel.aspect = 1,
..., zoom = 0.8)
prepanel.default.levelplot(x, y, subscripts, ...)
prepanel.default.qqmath(x, f.value, distribution, qtype,
groups, subscripts, ...)
prepanel.default.densityplot(x, darg, groups, subscripts, ...)
prepanel.default.parallel(x, y, z, ...)
prepanel.default.splom(z, ...)