[R] Add item to scale?

[Uwe Ligges]

Robert Lundqvist wrote:
> 
> Hi,
> 
> many thanks for all suggestions as to shading of areas. Now to another small
> detail: how do I add items to the x-axis? Given a plot of "dnorm", I'd like
> to add some text to the x-axis, preferably with a corresponding tick mark.
> Imagine the typical \lambda demarcating a tail area. So far, I've only been
> able to add text in the plot region, not in the one of the axes.
> Suggestions?

Two solutions:
 mtext() for placing text into the margins or
 text() after par(xpd=TRUE)

Uwe
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