Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow at intermountainmail.org
(801) 408-8111
> -----Original Message-----
> From: r-devel-bounces at r-project.org
> [mailto:r-devel-bounces at r-project.org] On Behalf Of
> thomas.friedrichsmeier at ruhr-uni-bochum.de
> Sent: Tuesday, March 06, 2007 7:04 AM
> To: r-devel at stat.math.ethz.ch
> Cc: R-bugs at biostat.ku.dk
> Subject: [Rd] Wish: Option to configure the default par() (PR#9545)
>
> Full_Name: Thomas Friedrichsmeier
> Version: 2.4.1
> OS: linux (Debian unstable)
> Submission from: (NULL) (84.60.113.185)
>
>
> Summary: It would be nice to have a centralized option for
> setting default par() options for all devices and all plots.
> This would ease producing graphs in a customized but
> consistent way. Suggesting options("par.default").
>
> Example problem: Make all graphs look like
>
> par(bg="light gray", las=2)
>
> both on screen and for various produced file formats such as
> png() and postscript().
>
> Current situation: To solve the example problem, two
> approaches come to mind:
> 1) Always call par() before the next plot. This could be
> wrapped into a function to make it easier to stay consistent. E.g.:
>
> postscript()
> myDefaultPar() # calls par(bg="light gray", las=2)
> plot(...)
>
> 2) Create wrappers for all devices of interest, like e.g.
> (not quite correct, but good enough for this example):
>
> myX11 <- function(...) {
> X11(...)
> par(bg="light gray", las=2)
> }
>
> Both solutions work, but are not entirely elegant. The
> drawback of 1) is that you still need to add the given line
> manually at all places. The drawback of 2) is that a similar
> wrapper will have to be created (and used) for each different device.
>
> Wish:
> Add a new option: options("par.default"), similar to the
> existing options("par.ask.default"). This option would accept
> a list of all par settings to set a custom default for:
>
> options(par.default=list(bg="light gray", las=2))
>
> par() options specified while creating the device, in calls
> to plot() or in subsequent calls to par() would take
> precendence over options("par.default").
>
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