Try this:

fill=c("gray"(0.1),"gray"(0.5),"gray"(1))



On Wed, Sep 1, 2010 at 4:59 PM, Jens Oldeland <oldeland@gmx.de> wrote:

> No...but it works!
>
> I do not know why I did not find it...
> Many thanks!
>
>
> Hi David, thanks to you as well.
>
>
> Greg Snow schrieb:
> > Did you try gray.colors(3)?
> >
>
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> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html<http://www.r-project.org/posting-guide.html>
> and provide commented, minimal, self-contained, reproducible code.
>

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