[R] ggplot2: annotated horizontal lines

[baptiste auguie]

What's wrong with geom_text?

>  my.value = 0.65
>  qplot(1,1)+geom_hline(v=0)+
> 	geom_text(mapping=aes(x=1,y=0),label=paste(my.value),vjust=-1)


baptiste

On 3 Mar 2009, at 18:10, Dave Murray-Rust wrote:

> Hello,
>
> I'm using geom_hline to add a minimum line to my plot (representing
> the best solution found so far by a search algorithm). I'd like to
> annotate this line with it's numerical value to save trying to read it
> off the graph, but I can't see a clear way to do this - any ideas?
>
> (Alternatively, if this is against the spirit of the grammar of
> graphics, is there a better way to represent the information?)
>
> Cheers,
> dave
>
>
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_____________________________

Baptiste Auguié

School of Physics
University of Exeter
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