R-beta: Replot?

[Ross Ihaka]

Friedrich.Leisch writes:

	Is there some sort of replot function, i.e., reproducing the current
	plot like gnuplot's command replot?

	Of course it's easy to issue a plot command twice, but after several
	lines statements it gets a little bit annoying ... and the plot
	disappears each time one resizes the window, changes from single plot
	to multiple plots etc.

	Just dreaming ...

Actually, Greg Warnes has written code to do this.  I haven't folded it
in because of time and because I'd like to integrate it with a move
to an event driven interface.  The event model is needed to handle
the resize problem.  I'd also like to make it possible to maintain
the picture description on disk rather than memory.  I have memories
of the first time I threw 100,000 points at the S plotting code
and my poor little Sun 3/50 buckled at the knees.
	Ross
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