R help - Jan 2007 - prime in expression in plot

I want to write something like (LaTeX style)
b_{norm}=\frac{F\prime(0)}{R\prime(0)}

how do I add the "prime" (first derivative) to a R-plot? The help of
"plotmath" just talks about "partialdiff". Can you complete
this
command?

text( 30,0.05,labels=expression(b[plain("norm")]==frac(F(0),R(0))) )

Thanks,
Thomas

> how do I add the "prime" (first derivative) to a R-plot?
sorry for the noise, I found it myself:
http://finzi.psych.upenn.edu/R/Rhelp02a/archive/20984.html
I use now (works fine)
plot(1,1,xlab=expression(frac("F'"(0),"R'"(0))),xaxt="n")
Thomas

Two possibilities are ' (which is the usual way to write \prime in TeX) 
and minute (which is the nearest character in the Adobe symbol font that 
plotmath uses).  TeX has its own symbol fonts, and most R devices are 
based rather on the Adobe one.

On Wed, 10 Jan 2007, Thomas Steiner wrote:
> I want to write something like (LaTeX style)
> b_{norm}=\frac{F\prime(0)}{R\prime(0)}
>
> how do I add the "prime" (first derivative) to a R-plot? The help
of
> "plotmath" just talks about "partialdiff". Can you
complete this
> command?
>
> text(
30,0.05,labels=expression(b[plain("norm")]==frac(F(0),R(0))) )
>
> Thanks,
> Thomas
-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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