Greek letters, subscripts and superscripts

[Tristan Lorino <tristan.lorino@lcpc.fr>]

Hi,

I would like to put greek letters, subscripts and superscripts in my 
plot labels, which are generated by the commands:
ps.options (paper="A4", setfont=ps.setfont.latin1)
pdf.graph("title.pdf", horizontal=TRUE, color=T)
...
dev.off()

Thanks,
Tristan Lorino
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