[R] panel argument in coplot

Uwe Ligges ligges at statistik.uni-dortmund.de
Wed Jan 17 16:38:57 CET 2001

"Peter B. Mandeville" wrote:
> How can I add a least squares line to each panel in coplot?
> Thank you very much.

Let's extend the last example from the help to coplot():

 coplot(Life.Exp ~ Income | Illiteracy * state.region, number = 3,
   panel = function(x, y, ...) {points(x, y, ...); abline(lm(y~x))})

So just change the function for the argument 'panel'.

Uwe Ligges
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