[R] ggplot: problem with fill option in stat_smooth()

hadley wickham h.wickham at gmail.com
Wed Feb 4 17:07:01 CET 2009

On Wed, Feb 4, 2009 at 9:12 AM, Ian Fiske <ianfiske at gmail.com> wrote:
> Hi all,
> I am using ggplot2 and continuing to find it very useful and pretty.
> However, I am trying to create some graphics for publication that would be
> included in an MS Word document (not my choice!) in Windows Vista.
> The problem is that I want to use stat_smooth() to add an fitted linear
> model line along with its 95% confidence band, but I cannot seem to get the
> confidence band in a format that would import into Word.  I have read the
> documentation and am using the fill="grey50" argument to eliminate
> transparency as a potential problem.  But still, I have tried nearly all
> export formats and the only one that correctly shows the confidence band is
> PDF, which I cannot import into Word as a vector graphic.
> This makes me wonder if the fill="grey50" option is working as advertised.
> Here is a simple example using the mtcars data set included with ggplot2:
> qplot(wt,mpg,data=mtcars) + stat_smooth(fill="grey50")

It's not - you actually need alpha = 1.  I'll make a note to fix the



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