[R] push/pop on a stack

Marc Schwartz mschwartz at medanalytics.com
Tue Feb 25 18:43:03 CET 2003

>-----Original Message-----
>From: r-help-admin at stat.math.ethz.ch 
>[mailto:r-help-admin at stat.math.ethz.ch] On Behalf Of David Forrest
>Sent: Tuesday, February 25, 2003 11:34 AM
>To: r-help at stat.math.ethz.ch
>Subject: [R] push/pop on a stack
>Is there a package for stacks with pushing and popping?
>I'd really like to do something like
> some stuff....
>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,

In at least that particular example, the same save/restore operation
can be achieved by:

old.pars <- par(no.readonly=TRUE)

...other code


That is in the examples in ?par.

Not sure that you need a LIFO based stack mechanism for that unless I
am missing something.


Marc Schwartz

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