[R] plot in win.metafile in nlme

[Liaw, Andy]

This seems to be a rather common error:  Use trellis.device(win.metafile,
file="Loblolly.wmf") instead of calling win.metafile() directly.

HTH,
Andy

> From: Karl Knoblick
> 
> Hallo!
> 
> I want to plot grouped data in a wmf-file. The
> following example gives an error:
> 
> library(lattice)
> library(nlme)
> data(Loblolly) # example data from nlme
> win.metafile("Loblolly.wmf")
> plot(Loblolly)
> dev.off()
>  
> After the plot(Loblolly) the following error occurs:
> "Error in get(x, envir, mode, inherits) : variable
> "win.metafile:Loblolly.wmf" was not found"
> The file Loblolly.wmf exists but is just white.
> 
> With "normal" plot it works, e.g.:
> win.metafile("Loblolly2.wmf")
> plot(Loblolly$age, Loblolly$height)
> dev.off()
> 
> Does anybody know how to solve the problem above or a
> nice workaround?
> (Using plotSave works in general but the colors are
> bad.)
> 
> Karl


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