[R] Problem with Trellis graphics in nlme

Spencer Graves spencer.graves at pdf.com
Thu Nov 20 20:43:57 CET 2003

I see you mentioned the Bates and Pinhiero manual, but I didn't see 
Bates and Pinhiero (2000) Mixed-Effects Models in S and S-Plus 
(Springer).  Have you also looked at this? 

hope this helps.  spencer graves

anthony staines wrote:

> Hi,
> I would be grateful for help with a problem which is irritating me.
> I am quite sure that I am doing something stupid, but I can't see what 
> it is.
> I am running R 1.7 on Windows 2000. The graphics device is the PC screen.
> The graphics from the nlme demonstration in Bates an Pinheiro's manual 
> work just as advertised. The CO2 data and the Orthodont data dsiplay 
> beautifully.(plot(Orthodont, outer=true, key=false)  However. when I 
> try to analyse a data set of my own, of about 2,770 measurements on 
> 293 women the graphics go very peculiar. The graphics in the example 
> from the manual fill most of the vertical extent of the graphics 
> device. My graphics are correct horizontally, but are confined to 
> about one-fifth of the vertical extent of the graphics device. As a 
> result they look odd, and are almost usless for analysis. They do 
> seem, however, to be the correct graphics (In this case maternal 
> weight against gestational age for two groups of women).
> I have read the manual for the lattice commands, and the nlme command, 
> and indeed for the plain plot command, but failed to get any ideas. 
> Roughly, I need to tell lattice to use the full vertical extent of the 
> display device. If it helps, I can e-mail the offending images to you 
> individually on request.
> Anthony Staines,
> Public Health,
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