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, UCD
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