On 4/21/2008 8:16 AM, Prof Brian Ripley wrote:
> On Mon, 21 Apr 2008, Duncan Murdoch wrote:
>
>> On 21/04/2008 4:59 AM, Norbert NEUWIRTH wrote:
>>> dear useRs and developeRs,
>>>
>>> I am afraid it is a very basic question, but I did not find anything alike
>>> in the literature.
>>>
>>> The R standard graphics device shows the opportunity to activate the
>>> history of plots drawn within the current session. Th user can scroll
>>> back and see the last graphs (or same graph with some changes in
>>> parameters). I did not find out yet how to activate the history by
>>> code. Any ideas?
>>
>> When you open the window, use windows(record=TRUE).
>>
>> If you want this to happen by default, write your own wrapper for the
>> windows() graphics device:
>>
>> windows <- function(..., record=TRUE)
>> grDevices::windows(..., record=record)
>
> Or in 2.7.0, windows.options(record=TRUE) sets this for the session.
> You can set this in a .Rprofile file by (untested, I am not on Windows)
>
> setHook(packageEvent("grDevices", "onLoad"),
> function(...) grDevices::windows.options(record=TRUE)
> )
>
>> One thing I'd like to do, but didn't have time to implement before
>> 2.7.0, is to have history set to some finite size, e.g. a default might
>> be the last 3 or 10 plots. The problem with record=TRUE is that it
>> keeps a record of all the plots, so memory use just increases and increases.
>
> Why not just startup another device with record=FALSE?
I'd like to have recording always on, but I don't need an infinite
history. But this isn't urgent enough to have prodded me into writing
it before now.
Duncan Murdoch
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
