If you're desperate for a workaround, you might want to try this
example using pgfSweave,
http://ggplot2.wik.is/Mathematical_annotations
On a similar vein, you could try psfrag replacements with a postscript
device (there is some code for this on the list archives).
Feel free to comment / edit on the wiki page.
HTH,
baptiste
On 16 May 2009, at 14:48, Paul Emberson wrote:
Hi Stephen,
The problem is that the label on the graph doesn't get rendered with a
superscript. I want the label on the graph to be rendered the same
way
as the label you have put on the axis.
I am plotting a piecewise function and I wanted to label each
section of it.
Paul
stephen sefick wrote:
how about this
a <- 1:10
b <- 1:10
d <- paste("x","^","{n-1}")
qplot(a,b, xlab=expression(x^{n-1}))+geom_text(aes(4,8, label=d))
On Fri, May 15, 2009 at 10:02 PM, Paul Emberson <em...@calidasoft.co.uk
> wrote:
Hi,
Is there a way of annotating a ggplot plot with mathematical
formulae?
I can do
geom_text(aes(label="some text", ...
but I can't do
geom_text(aes(label=expression(x^{n-1}), ...
It gives the error
Error: geom_text requires the following missing aesthetics: label
Is there a convenient equivalent?
Cheers,
Paul
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______________________________________________
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_____________________________
Baptiste Auguié
School of Physics
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK
Phone: +44 1392 264187
http://newton.ex.ac.uk/research/emag
______________________________________________
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
