[R] percent sign in plot annotation

[Gavin Simpson]

On Wed, 2007-01-17 at 09:57 +0000, Martin Keller-Ressel wrote:
> Hello,
> 
> I would like to annotate a graph with the expression 'alpha = 5%' (the  
> alpha should be displayed as the greek letter).
> I tried
> 
> > text(1,1,expression(alpha == 5%))
> 
> which gives a syntax error.
> escaping the percent sign (\%) or doubling (%%) does not help.
> What do I do?
> 
> Thanks,
> 
> Martin Keller-Ressel

Escaping a % with \ and then escaping the \ is not valid syntactically.

This works, but there may be better ways to do this:

plot(0:10, 0:10, type = "n")
text(5,5,expression(paste(alpha == 5, "%", sep = "")))

HTH

G
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Gavin Simpson                     [t] +44 (0)20 7679 0522
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