[R] ggplot2: recommended workaround for broken legend.position="top"

[hadley wickham]

On Sun, May 10, 2009 at 10:32 AM, Zeljko Vrba <zvrba at ifi.uio.no> wrote:
> Searching the mail archives I found that using legend.position as in
> p.ring.3 + opts(legend.position="top")
>
> is a known bug.  I tried doing
> p.ring.3 + opts(legend.position=c(0.8, 0.2))
>
> which works, but the legend background is transparent, i.e. I see the
> plot background through the legend.  Adding additional option
>
> opts(legend.background=theme_rect(fill=TRUE,colour="white"))
>
> fills the whole rectangle black(!), making text invisible, but leaves the shape
> symbols visible.
>
> So, how can I obtain a graph with legend positioned within the plot boundaries
> (that's OK, I don't even mind manually positioning the legend), but on a white
> background, i.e., so that the plot underneath is not visible?

opts(legend.background=theme_rect(fill="white"))

Hadley

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