[Tikzdevice-bugs] Special characters?

[Matthieu Stigler]

Hi

I have a trouble with special characters... Hoped to find answers in sec 
4.5.5 but seems not so verbose :-)

Problem is simply I have characters that have latex meaning:

library(tikzDevice)

tikz('prob.tex')

plot(runif(100), main="Unit: us$/t")
dev.off()

How can I solve this?

Thanks!!

Matthieu