xfig device (was [Rd] Re: [R] MetaPost device?)

Prof Brian D Ripley <ripley@stats.ox.ac.uk> writes:

the length of "threshold" in the relevant font... Of course you could

Do you mean *width* of "threshold"?  

Um, yes. The *length* is 9, I suppose.

(potentially) get the driver to output actual TeX, but then you have
no inkling about the total size of the formula object, and it comes
out as TeX code inside XFig. Xfig is pretty much geared towards
postscript fonts, so I suppose the most practical thing to do is to
assume PS as the final target and accept the approximations caused by
the screen fonts while previewing. 

I think I said that in part of my posting which you omitted!

So you did. (I must have woken up too early today...) What I forgot to
add was something to the effect that as long as you keep formulas as
"compound objects" in XFig then it shouldn't be a major obstacle to
moving the labels around.

R currently seems to ignore kerning in computing string dimensions.

..which we should probably fix at some point. Can't be that hard?
(BTW, I forget whether Postscript itself does kerning by default or
one has to use a special string operator to obtain it?)

Also, I suspect that some of the finer points of the Appendix G of the
TeXbook are getting lost -- the micro-spacing in formulas appear to be
not quite right.

O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk)             FAX: (+45) 35327907
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