Boxplot for hexbin lattice plot

A panel function to add a boxplot to a hexbin lattice plot.

panel.hexboxplot(x, y, xbins = 30,
                 xbnds = c("data", "panel"), ybnds = c("data", "panel"),
                 .prelim = FALSE, .cpl = current.panel.limits(),
                 .xlim = .cpl$xlim, .ylim = .cpl$ylim,
                 .aspect.ratio, type = character(0), cdfcut = 0.25,
                 shadow = 0.05, ..., check.erosion = TRUE)

Arguments

x, y

numeric vector or factor.

xbins

the number of bins partitioning the range of xbnds.

xbnds, ybnds

horizontal and vertical limits of the binning region in x or y units respectively; must be numeric vector of length 2.

.prelim, .cpl, .xlim, .ylim, .aspect.ratio

for internal use.

type

character vector controlling additional augmentation of the display. A "g" in type adds a reference grid, an "hg" adds a hexagonal grid.

cdfcut

number in (0,1) indicating the confidence level for the erosion limits. See erode.hexbin for more information.

shadow

number in (0,1) indicating the confidence level for the erosion limits of a boxplot shadow. See erode.hexbin for more information.

...

potential further arguments passed on.

check.erosion

logical indicating only eroded points should be used for "erodebin" objects; simply passed to hcell2xy, see its documentation.

Value

There is no return value from this function. The results are plotted on the current active device.

Author

Nicholas Lewin-Koh nikko@hailmail.net

Examples

mixdata <-
    data.frame(x = c(rnorm(5000),rnorm(5000,4,1.5)),
               y = rep(1:2, 5000))
hexbinplot(y ~ x, mixdata, panel = panel.hexboxplot)