Thanks, Dennis. Yes, I can do that, but that locks the physical units
to locations of the labels. I had hoped that there might be something a
bit more flexible, like a subtitle or more general text.
Carlisle
On 11/14/11 6:03 PM, Dennis Murphy wrote:
You don't show code or a reproducible example, so I guess you want a
general answer. Use the draw.colorkey() function inside the
levelplot() call. It takes an argument key =, which accepts a list of
arguments, including space, col, at, labels, tick.number, width and
height (see p. 155 of the Lattice book). More specifically, the labels
argument also accepts a list of values, with components at, labels,
cex, col, font, fontface and fontfamily. You could attach the units as
labels with a combination of at = and labels = inside the (outer)
labels argument, something like
myAt<- c(1, 3, 5, 7, 9)
myLab<- paste(myAt, 'cm')
levelplot( ...
draw.colorkey(key = list(labels = list(at = myAt, labels = myLab)),
... )
If that doesn't work, then please provide a reproducible example.
HTH,
Dennis
On Mon, Nov 14, 2011 at 12:34 PM, Carlisle Thacker
<carlisle.thac...@noaa.gov> wrote:
How to add units (e.g. "cm") to the color key of a lattice levelplot?
The plots looks fantastic, but it would be nice to indicate somewhere near
the end of the color key that the values associated with its colors are in
centimeters or some other physical units.
The only thing I find is the possibility to specify the labels so that one
explicitly includes the units. That leaves little flexibility for
positioning where this information appears. Is there a better way?
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