The Details section of ?par starts of with: "Each device has its own set of graphical parameters."
(So this is not Mac-specific.) Strictly speaking, the options you set with par() are not "reset" when you open a new graphics device. Rather, when a new device is opened, it is initialized with default values of graphics parameters. If you can find where those default values are stored (in a brief search I did not find them), then perhaps you can change them at session startup time. I haven't tested this, but you might be able to make things a little more convenient by defining a function mypar <- function() par( {set whatever values you want} ) Then whenever you open a new device, immediately call that function: pdf() mypar() plot(x,y) dev.off() png() mypar() plot(x,y) dev.of() And so on. -- Don MacQueen Lawrence Livermore National Laboratory 7000 East Ave., L-627 Livermore, CA 94550 925-423-1062 On 6/23/15, 8:54 AM, "R-help on behalf of Martin Batholdy via R-help" <r-help-boun...@r-project.org on behalf of r-help@r-project.org> wrote: >Hi, > >I would like to set plot-options via par() and keep them for all plots >that are created thereafter. >Currently after each plot device the parameters I can set with par() are >reseted to their default value, at least on a Mac (R 3.2.1). > >Is there a way to define the parameters for plotting once at the >beginning and then keep them for an entire R session? > > >Thank you! > >______________________________________________ >R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >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. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.