[R] Plotting text with lattice

[McGehee, Robert]

Hello,
I've decided to take the leap and try my hand at the lattice package,
though I am getting stuck at what one might consider a trivial problem,
plotting text at a point in a graph. Apologies in advance if (that) I'm
missing something extremely basic.

Consider in base graphics:
> plot(1:10)
> text(2, 4, "Text")
In the above you will see text centered at the point (2, 4) on the
graph.

Now I would like to try to do the same thing using the lattice package:

> xyplot(x ~ x, data = data.frame(x = 1:10))
> ltext(x=2, y=4, labels="Text")
> panel.text(x=2, y=4, labels="Text")
> grid.text(label="Text", x=2, y=4)
> grid.text(label="Text", x=unit(2, "native"), y=unit(4, "native"))

None of the above four commands puts the "Text" at the (2, 4) point on
the graph. Any help with this would be appreciated! Also, if I have more
than one panel and would like to place text at different points on
different panels how would I do this?

Also, note that I'm hoping to use text to label interesting points in a
levelplot, but am using the above xyplot as an example.

Thanks,
Robert


Robert McGehee
Quantitative Analyst
Geode Capital Management, LLC
53 State Street, 5th Floor | Boston, MA | 02109
Tel: 617/392-8396    Fax:617/476-6389
mailto:robert.mcgehee at geodecapital.com



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