Re: [R] (x,y) coordinates for grid.text()

From: hadley wickham <>
Date: Tue, 04 Mar 2008 11:19:55 -0600

On Tue, Mar 4, 2008 at 11:18 AM, hadley wickham <> wrote:
> > When using grid.text it seems my supplied (x,y) coordinates are being
> > plotted only in npc (normalized parent coordinates) where (.5,.5) is the
> > center of the graph. How do I allow (x,y) to be coordinates corresponding
> > to the (x,y) values in the graph? The examples in ?grid.text seem to do
> > this. (I think the problem lies in how x and y are defined with respect to
> > unit ). Any help much appreciated. Sample code below.
> Have you read the documentation for grid.text? You need to read the
> description of the default.units argument and then read ?unit.

Oh, and since you're drawing on top of a lattice plot, you'll also need to read ?trellis.focus



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