possible bug (PR#91)

[Peter Dalgaard]

> bug.report:
> =====================
> Version:
>  platform = i586-unknown-linux
>  arch = i586
...
> 1. 
> bug.report() gives above information: however, my computer is a 486,
> not 586, but I am not knowldedgeable enough to tell whether
> bug.report() or the operating system is the optimist.

Your OS is the optimist, and R is not checking during configure. 
You may lose a little efficiency from this, but it's relatively 
harmless. Recompile your kernel with the right CPU setting if it bothers you.

> 2.
> It would be helpful if help(bug.report) showed how to exit
> bug.report() back to R. 

Hmm. It dumps you into your favourite editor, as specified in options()$editor,
and how to get out of that is editor-dependent... Not much we can do about that,

I'm afraid (or can we?). The bug.report() interface got cleaned up
substantially, 
by the way.

> 3.
> Using "expression" as ylab or xlab parameter of plot(): label is not
> centered (too high or too far to the right); this is particularly
> obvious if, e.g., margins are set wide:
> 
> e.g., with:
> 
> par(mai=c(1.8,2,1.8,2))
> 
> I padded the label with spaces to approximately center it:
> 
> ylab=expression(paste("[Ca]"[i]," (nM)                            ")

Still with us, I'm afraid. Don't see the mai= thing, though, but

 plot(1:3,ylab=expression(paste("[Ca]"[i]," (nM) "))) 

shows the effect badly enough.

Moving PR to "graphics"
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