[R] graphics reset

Duncan Murdoch dmurdoch at pair.com
Mon Nov 17 00:24:56 CET 2003

On Sun, 16 Nov 2003 17:19:29 -0500, you wrote:

>Is there a specific command to clear the graphics window. On occasion I
>need to construct plots using commands that don't clear the graphics
>window (like text, lines and points etc.) -only- and hence need to clear
>the graphics completely before hand. 

frame() or plot.new() will move to the next frame.  By default,
there's only one frame, but calls like par(mfrow=c(2,2)) set up more
frames on a single page.

>also, is there a way to restore the graphics parameters to default
>values, say in these cases where you forgot to save the original values
>and want to restore the graphics to some sane state after a long R

The easiest way is to use dev.off() to close the graphics window and
then start plotting to open a fresh new one, with default settings.

Duncan Murdoch

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