[R] expressions on graphs

Peter Dalgaard BSA p.dalgaard at biostat.ku.dk
Tue Apr 9 22:30:39 CEST 2002

John Janmaat <john.janmaat at acadiau.ca> writes:

> Hello,
> I am trying to get a time derivative on a plot title.  I prefer to
> have it in the form \dot{s_i}, but \partial s_i/\partial t would be
> O.K.  In the graphics demo I cannot find either a dot or a partial
> equivalent.

Hmmm... Peculiarly, we actually have "partialdiff" in the symbol
table, but it doesn't work. That would require modification of the 
TranslatedSymbol() routine in plotmath.c. 

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