ggplot: problem with fill option in stat_smooth()

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")

From: Ian Fiske <ianfiske at gmail.com>
Subject: [R]  ggplot: problem with fill option in stat_smooth()
To: r-help at r-project.org
Date: Wednesday, February 4, 2009, 7:12 AM
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")

I even tried the Cairo library as one R-help post
suggested, but to no
avail.

Any suggestions?

Thanks much,
Ian Fiske
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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")

I even tried the Cairo library as one R-help post suggested, but to no
avail.

Any suggestions?

Thanks much,
Ian Fiske

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
documentation.

Hadley

--
http://had.co.nz/

Thanks for the suggestion, Hadley.  I tried:

stat_smooth(fill=alpha("grey",1))

and got the same problem.  The shaded band shows up in the graphics
windows, but the only file format the keeps the confidence band is
PDF.

Am I doing this correctly?

On Wed, Feb 4, 2009 at 10:55 AM, Ian Fiske <ianfiske at gmail.com> wrote:

Thanks for the suggestion, Hadley.  I tried:

stat_smooth(fill=alpha("grey",1))

and got the same problem.  The shaded band shows up in the graphics
windows, but the only file format the keeps the confidence band is
PDF.

Am I doing this correctly?

Oops, I should have been more clear.  You want:

 + stat_smooth(alpha = 1)

Hadley

--
http://had.co.nz/