[R] Plot Accessibility

[john crepezzi]

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, and I don't want the code to have
any concept of a "first entry" instantiating the plot with plot() in place
of lines().

Ideally, I'd like something to the effect of:

plot <- createPlot(main = "Hello World", sub = "tiny, little world", xlim =
c(-3, 3), ylim = c(-3, 3))

plot <- addElement(plot, lines(col = 'BLUE', x = c(0, 1, 2, 3), y = c(3, 2,
1, 0)))

Hopefully this laid my problem out a little better.

Thanks in advance for any help you might be able to offer
-John Crepezzi
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