Adding units to levelplot's colorkey
Thanks.
On 11/23/11 2:20 AM, Deepayan Sarkar wrote:
On Tue, Nov 15, 2011 at 6:53 PM, Carlisle Thacker <Carlisle.Thacker at noaa.gov> wrote:
Sorry that I was not clear. I was asking how to add annotation to levelplot's colorkey, not the levelplot itself. The only entry I can find from the help pages is via its labels. Googling did yield this: " draw.colorkey() doesn't support a title for the legend". So I presume there is also no support for any other annotation.
That is correct. Note that having support for more annotation is not
technically difficult, but it's not clear what a good design would be.
For the purpose you describe, I typically do something like
levelplot(volcano, colorkey = list(space = "top"),
main = "Height (cm)")
But I don't know how to do this nicely with a vertical color key.
-Deepayan