Re: [R] Plotting an lme( ) object

From: Deepayan Sarkar <deepayan.sarkar_at_gmail.com>
Date: Fri 20 Jan 2006 - 08:40:12 EST

On 1/19/06, Henric Nilsson <henric.nilsson@statisticon.se> wrote:
> Greg Tarpinian said the following on 2006-01-18 23:37:
>
> > I apologize for the second posting, my other email address
> > died today.
> >
> > I am using R for Windows, version 2.2. Here is my code:
> >
> > plot(FOO.lme4, resid(.,type = "p") ~ fitted(.) | GROUP,
> > id = 0.05, adj = -0.3,
> > idLabels = FOO$value,
> > main = "Pearson Residuals vs. Fitted Values, by Group",
> > between = list(x = .5, y = .5))
> >
> > The plot looks fine, but the "adj = -0.3" option seems to have
> > no effect on the labels that are added to identify potential
> > outliers. I would like to offset the FOO$value text that is
> > currently being displayed right on top of several pearson
> > residuals. How can I do this?
>
> I just checked the code for `plot.lme', and it builds a panel function
> that uses the `adj' argument of the `ltext'. Unfortunately, according to
> the help page for `ltext' (from the Details section),
>
> "... For 'ltext', only values 0, .5 and 1 for 'adj' have any effect."
>
> It wouldn't categorize this as a bug in R, since R's `ltext' function
> behaves according to its documentation. But it sure is irritating.
>
> I've CC:ed Deepayan Sarkar, maintainer of the lattice package, and
> hopefully he's able to advise or, even better, extend `ltext' to accept
> a wider range of `adj' values.

The grid.text argument 'just' does support numeric values like 'adj' now, but it didn't when ltext was originally written (or at least I was under the impression that it didn't). I have updated ltext accordingly, which in future releases of lattice should support other values of adj. I wasn't planning any updates for R 2.2.x, but I can if anyone needs this desperately enough.

Deepayan

--
http://www.stat.wisc.edu/~deepayan/

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Received on Fri Jan 20 08:51:29 2006

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