[R] Shared components?
murdoch at stats.uwo.ca
Thu Jul 18 15:57:11 CEST 2002
>Date: Wed, 17 Jul 2002 07:39:06 +0100 (BST)
>From: Prof Brian D Ripley <ripley at stats.ox.ac.uk>
>Subject: Re: [R] R GUI and object browser
>This may be appealing, but
>1) R objects such as lists have shared components. You get the creation
>date of the object, not of it components, and in any case I suspect you
>want the last modification date.
Do you mean that it is possible for a user to have an object appear in
two lists, or just that this is done internally?
For an example of the former, I'm wondering if it's possible to have
list1$A and list2$A be the same thing, so that changes to list1$A
affect list2$A as well.
I think it used to be possible to do this using .Alias, but I thought
the support for it had been dropped, as it caused too many problems.
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