[R] example(plot) question

Prof Brian Ripley ripley at stats.ox.ac.uk
Sun Jan 15 06:49:15 CET 2006

You can either open a graphics device with history

windows(record = TRUE)

or open a graphics device and set par(ask=TRUE) to be asked for 
confirmation after each plot (as most demos do).

Finally, if you always want graphics recorded on a windows() device, use

options(graphics.record = TRUE)

as documented in ?windows.  (I am not sure how you would know about plot 
history without knowing that was the relevant device: e.g. both the rw-FAQ 
and the Windows README tell you.)

On Sat, 14 Jan 2006, Robert W. Baer, Ph.D. wrote:

>> From Windows RGui, I tried:
> example(plot)
> This worked as expected except that the various plots write over top of 
> each other in the graphics window that is created.  I then discovered 
> that graphics history is not enabled during the example generation.
> I used the graphics window menu to enable the history and repeated 
> example(plot), but this raises a couple of questions:
> Is there a command line equivalent for activating plot history?  Is plot 
> history a par() or options() setting or is it intrinsic to an individual 
> graphics window?
> Is there an argument to example() that enables plot history and/or 
> wouldn't it make sense to have this activated by default whenever an 
> example() execution creates plots?
> I tried:
> help.search('plot record')
> help.search('plot history')
> help.search('history recording')
> without finding anything insightful to help with this topic, but I'm 
> just betting more than one of you knows what I should have typed or 
> where I should look<G>.
> Thanks,
> Rob
>> version
>         _
> platform i386-pc-mingw32
> arch     i386
> os       mingw32
> system   i386, mingw32
> status
> major    2
> minor    2.0
> year     2005
> month    10
> day      06
> svn rev  35749
> language R
> 	[[alternative HTML version deleted]]
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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

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