positive number giving width of the legend in inches.
ysize
height of legend in inches
lcex
the characters expansion size for the text in the legend,
see par(cex=).
inner
the inner diameter of a hexagon in inches.
style
the hexagon style; see grid.hexagons.
minarea, maxarea
fraction of the cell area for the lowest and largest
count, respectively.
mincnt, maxcnt
minimum and maximum count accepted in plot.
trans
a transformation function for the counts such as
sqrt.
inv
the inverse transformation function.
colorcut
numeric vector of values covering [0, 1] the determine
hexagon color classes boundaries and hexagon legend size boundaries.
border
argument for polygon(). Draw the border
for each hexagon.
density
argument for polygon() filling. A
0 causes the polygon not to be filled.
pen
color argument used for polygon(col = .).
Determines the color with which the polygon will be filled.
colramp
function accepting an integer n as an argument and
returning n colors.
leg.unit
unit to use
Author
Dan Carr <dcarr@voxel.galaxy.gmu.edu>
ported by Nicholas Lewin-Koh <kohnicho@comp.nus.edu.sg>
Details
The plot method for hexbin objects calls this function
to produce a legend
by setting the graphics parameters, so hex.legend itself is not a
standalone function.
The legend function is preliminary. Later version will include
refinements and handle extreme cases (small and large) for cell size
and counts.
See the Details section of grid.hexagons's help page.
## Not a stand alone function; typically only called from plot.hexbin()if (FALSE) {
grid.hexlegend(legend = 2, ysize = 1,lcex=8,inner=0.2,
maxcnt = 100, colorcut = c(0.5,0.5))
}