My understanding of the OP's request was for some sort of copy which
did change when entries in the original were changed; the sort of
behavior that might be seen in a spreadsheet that had a copy "by
reference".
On Apr 26, 2009, at 11:28 AM, hadley wickham wrote:
I want to (1) create a deep copy of pop,
I have already said *I* do not know how to create a "deep copy" in R.
Creating a deep copy is easy, because all copies are "deep" copies.
You need to try very hard to create a reference in R.
Hadley
--
David Winsemius, MD
Heritage Laboratories
West Hartford, CT
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