2-D Generalization of Boxplot
bin is an eroded
hexbin object, i.e.,
hboxplot() plots the high counts cells
erode(). By default, the high counts
cells contain 50 percent of the counts so analagous to the
hboxplot(bin, xbnds = NULL, ybnds = NULL, density, border = c(0, grey(0.7)), pen = c(2, 3), unzoom = 1.1, clip ="off", reshape = FALSE, xlab = NULL, ylab = NULL, main = "")
- an object of class
- global x- and y-axis plotting limits for multiple plots.
- density, border
- arguments for
polygon()each of length two, the first for the median, the second for the other cells.
- colors (
pen numbers) for
- plot limit expansion factor when
- either 'on' or 'off' are the allowed arguments, when on everything is clipped to the plotting region.
- logical value to reshape the plot although
- xlab, ylab, main
- x- and y- axis labels and main title
pen arguments correspond
polygon function calls for plotting two types of
cells. The cell types, pen numbers and suggested colors are
The erode components of the hexbin objects must be present for the medians cells to plot.
xbnds is missing or
reshape is true, the plot
changes graphics parameters and resets them. When
missing the function also zooms in based on the available data to
provide increased resolution.
The zoom used the hexagon cell centers. The unzoom argument backs off a bit so the whole hexagon will fit in the plot.
Hboxplot() is used as a stand alone function, for producing separate
- invisibly, the
hexViewport()used internally. Used to add to the plot afterwards.
set.seed(753) ## boxplot of smoothed counts x <- rnorm(10000) y <- rnorm(10000) bin <- hexbin(x,y) erodebin <- erode(smooth.hexbin(bin)) hboxplot(erodebin) hboxplot(erodebin, density = c(32,7), border = c(2,4)) hp <- hboxplot(erodebin, density = c(-1,17), main = "hboxplot(erode*(smooth*(.)))") pushHexport(hp) grid.points(x[1:10], y[1:10])# just non-sense to show the principle popViewport()