john crepezzi wrote:
Is there any way to determine if a plot exists before running lines()?
Hi John,
I use :
if(dev.cur()==1)
which usually indicates that the current device is the null device, and
therefore no plot windows are active. See the code for triax.plot.
Jim
_
I'm not so sure the original way I stated my issue was clear enough, so I'll
attempt to elaborate a little bit.
I'd like to make a function that is passed the name of a plot object, and a
lines/point specification, and graphs them all on the same plot.
I don't want to redraw the plot each time,
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