Hi, try this:

plot(simul, ylab=expression(beta), xlab=expression(sigma))

-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22"
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On 4/22/07, croero@hotmail.com <croero@hotmail.com> wrote:
>
>
> Hello, I would like to add to axis labels special caracters. Instead of
> writing :plot(simul, xlab="beta", ylab="sigma11") It would be great if I
> could write something as in LaTeX :plot(simul, xlab="\beta",
> ylab="\sigma_{11}") Is there a way to do that ? Thank you
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