[R] R GUI and object browser

Patrick Connolly p.connolly at hortresearch.co.nz
Wed Jul 17 23:54:18 CEST 2002

On Wed, 17-Jul-2002 at 07:39AM +0100, Prof Brian D Ripley wrote:

|> 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.

That's true.  I'm interested to know when I last did something to it.
For functions, I have the creation already from the nifty feature in
ESS called ess-insert-function-outline.

My method of using the comment to store the date is at least as simple
as the one Dan Putler suggests and it can apply to any object.  I have
no other use for comment since I annotate the file of commands I use
to keep me informed of the raison d'etre for each object.


|> The only clean way I can see to do this would be to alter the internal
|> structure to store a creation date in a SEXPREC.  

That's sounds along the lines of what I had in mind, but I had no idea
what it would involve.

|> That would add some memory overhead (but less than attributes).  It
|> looks doable, but I remain unconvinced it is worthwhile.

If hardly anyone agrees with me that the dates are useful to know,
it's certainly not worthwhile.  I'm not unhappy doing things the way I
do, inelegant though it is and it doesn't seem as though there's a
great clamour for such functionality.  However, if there were, what
would I need to know to be able to contribute to the effort that would
be involved?


Patrick Connolly
Mt Albert
New Zealand 
Ph: +64-9 815 4200 x 7188
I have the world`s largest collection of seashells. I keep it on all
the beaches of the world ... Perhaps you`ve seen it.  ---Steven Wright 

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