John,
thanks for the report.
On Jan 9, 2009, at 14:07 , John Fox wrote:
Dear list members,
I thought that I recalled a recent posting reporting a problem with
the R
data editor, but I haven't been able to locate the message in the list
archive.
In any event, I can reliably cause the R.app data editor either to
hang or
to produce errors in a couple of ways, the first of which is easier to
describe (the X11 data editor seems more robust, if limited in its
capabilities):
(1) Edit an empty data frame (which works in the Windows and X11 data
editors): edit(as.data.frame(NULL)).
(2) Edit any data frame "vigorously," adding a deleting rows and
columns
repeatedly. E.g., library(car); edit(Prestige).
I'm using R 2.8.1 installed from the binary on CRAN under OS X
10.5.5 on a
MacBook.
Can you, please, send me the crash reports you have? I can reproduce
some of it, but I wonder if it's caused by the same problems as your
crashes.
I wonder whether anyone else has observed these problems or has an
idea
about how to fix them.
The data editor is horribly old code (or rather horrible, old code)
that desperately needs re-writing. The plan was originally to do that
for GUI 2.0, but it is not in sight due to the lack of manpower. I can
at least see if I can fortify it a bit better so it doesn't generate a
crash (I was hoping I won't have to do that since it's really an ugly
mess). FYI the nightly builds won't run the next three nights, because
we are having a complete shutdown here for maintenance until Monday,
so the R.app binaries won't be fixed until Tuesday.
Thanks,
Simon
(I'm copying Brian Ripley since we exchanged emails about this issue
earlier
today.)
(Was it a BCC? I didn't see it in the e-mail ...).
Regards,
John
------------------------------
John Fox, Professor
Department of Sociology
McMaster University
Hamilton, Ontario, Canada
web: socserv.mcmaster.ca/jfox
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