[R] R GUI and object browser
maechler at stat.math.ethz.ch
Fri Jul 12 08:28:57 CEST 2002
>>>>> "PaCo" == Patrick Connolly <p.connolly at hortresearch.co.nz> writes:
PaCo> On Thu, 11-Jul-2002 at 07:58PM -0400, Mike Prager wrote:
PaCo> |> At 10:37 AM 07/11/2002 +0200, Philippe Grosjean wrote:
PaCo> |> >Several users noticed that the only part of the Splus GUI they
PaCo> |> >use is the object explorer. So, wouldn't an R object explorer be a good
PaCo> |> >addition to the current interface?
PaCo> |> Yes! I hope the core development team will consider it.
PaCo> It's not very difficult to write a function that lists your objects in
PaCo> a dataframe along with the sort of information you'd like to see. I
PaCo> personally like to know the size of dataframes so it was simple to
PaCo> make columns that shows the dimensions. It was somewhat trickier to
PaCo> get the date but I like to have it, so I did it.
PaCo> My current directory has things like this in it:
PaCo> Object Mode Rows Cols Len Date
PaCo> 1 fmr.pvh2000 function -- -- 1 12/07/2002
PaCo> 2 last.warning list -- -- 5 12/07/2002
PaCo> 3 pvh.latto2000 function -- -- 1 09/07/2002
PaCo> 4 pvh.latto2000A function -- -- 1 09/07/2002
PaCo> 5 rain.plot2000 function -- -- 1 09/07/2002
PaCo> 6 accum2000 function -- -- 1 04/07/2002
PaCo> 7 pvh.latto4 function -- -- 1 04/07/2002
PaCo> 8 side.df dataframe 1000 5 5 04/07/2002
may be an under used feature of R, at least since version 0.5 or so;
it does provide a bit more output than the above and
does *not* provide the date.
For quite some reason:
I believe that most of the experienced S users (including the R
ones) keep things in scripts and packages -- if only for the
purpose of reproducible research and do not use .RData often
(I do never; I do save expensive results (mostly simulations) in *.rda
files that I attach() or load() explicitly, but that's all.
Everything else I recreate by running a script or loading a
private package. --> hence `date' of an object would have to be
the date of the script where that object is defined which often
is not really interesting...
PaCo> I wrote my function some years ago and could do it much better knowing
PaCo> what I know now, but if someone wants to make something generally
PaCo> available, mine might be a good starting point.
(so why didn't you append it, or make it available as URL ?)
PaCo> Mt Albert
PaCo> New Zealand
PaCo> Ph: +64-9 815 4200 x 7188
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