[R] push/pop on a stack

[David Forrest]

Is there a package for stacks with pushing and popping?

I'd really like to do something like

push(par(no.readonly=TRUE))

 some stuff....

par(pop())

It seems like it wouldn't be difficult, and that someone may have already
implemented a set of stack functions, and I wouldn't like to duplicate it.

Thanks for your time,
Dave
-- 
 Dave Forrest    (434)924-3954w(111B) (804)642-0662h (804)695-2026p
 drf5n at virginia.edu             http://mug.sys.virginia.edu/~drf5n/