Adding margin text to lattice graphics

Colleagues

I am learning lattice graphics (R 2.12.2; OS X). ?Several days ago, I inquired about adding margin text to lattice graphics. ?Jim Price offered a useful reply, suggesting that I add:
? ? ? ?page = function(page) grid.text('words', x = 0.5, y = 0.01)
to my call to the function. ?The entire function that he suggested was;
? ? ? ?xyplot(1 ~ 1,
? ? ? ? par.settings = list(layout.heights = list(bottom.padding = 10)),
? ? ? ? page = function(page) grid.text('words', x = 0.5, y = 0.01))
That worked initially and I also had success with panel.text.

However, I am now working with more complicated objects in which more than one image is displayed on a page. ?In this instance, the text added by the command above appears with each image. ?I would like it to appear only once, scaled across the entire page, not relative to a single panel.

Is there a different command that accomplishes my goal? ?Or a different implementation of this same command? ?Any help would be greatly appreciated.
Also, because of my naivete with lattice graphics, I may be asking the question in entirely the wrong way -- please feel free to redirect me.

Dennis

Dennis Fisher MD
P < (The "P Less Than" Company)
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