R help - Jul 2006 - saving intermediate graphics

Greetings, R-friends:

I'm using R 2.3.1 on a DELL box with 2 gig, running WindowsXP Pro.

I am making what is admittedly a very busy plot composed of qq plots with
superimposed density() plots.  I need to show everything and the result is
messy, but informative.

If I produce the basic qq plot, and then add incrementally to it, saving the
graphic at each step, the sequence does make the entire exercise
understandable.  (Honest!)

I can do this easily by clicking on the plot and saving it to PowerPoint as
a metafile.

I would like to automate the process.  I know how to produce win.metafiles,
but closing the file with dev.off() to produce the first graphic means that
I can't add to that and produce the subsequent graphic and file.

Is there a way to do this without generating the entire plot from the
beginning for each graphic?

Thanks


Charles Annis, P.E.

Charles.Annis at StatisticalEngineering.com
phone: 561-352-9699
eFax:? 614-455-3265
http://www.StatisticalEngineering.com
?

On Wed, 12 Jul 2006, Charles Annis, P.E. wrote:
> Greetings, R-friends:
> 
> I'm using R 2.3.1 on a DELL box with 2 gig, running WindowsXP Pro.
> 
> I am making what is admittedly a very busy plot composed of qq plots with
> superimposed density() plots.  I need to show everything and the result is
> messy, but informative.
> 
> If I produce the basic qq plot, and then add incrementally to it, saving
the
> graphic at each step, the sequence does make the entire exercise
> understandable.  (Honest!)
> 
> I can do this easily by clicking on the plot and saving it to PowerPoint as
> a metafile.
> 
> I would like to automate the process.  I know how to produce win.metafiles,
> but closing the file with dev.off() to produce the first graphic means that
> I can't add to that and produce the subsequent graphic and file.
> 
> Is there a way to do this without generating the entire plot from the
> beginning for each graphic?
Have you tried savePlot()?  It should work incrementally.


-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595