[R] Quiz {was "Quit asking me .."}
Martin Maechler
maechler at stat.math.ethz.ch
Wed Sep 17 08:36:19 CEST 2003
>>>>> "Spencer" == Spencer Graves <spencer.graves at pdf.com>
>>>>> on Tue, 16 Sep 2003 19:54:22 -0700 writes:
Spencer> Consider
Spencer> Q <- function(x)q("no")
Spencer> With R 1.7.1 under Windows, "Q()" caused R to close
Spencer> without asking for confirmation. This does not
Spencer> solve the whole problem, but it might provide a
Spencer> piece of the puzzle.
Apropos, this reminds me of the old quiz (from the S-plus times):
How can you write (quite short!) R code such that
typing
"Q"
-- without any "()" -- will quit R (without asking about saving).
[But you shouldn't really keep that code active in your standard R session
because it would be too easy to accidentally shut down R !]
For the advanced ones:
My shortest solution uses 51 characters of R code, can you beat that?
--
Martin Maechler <maechler at stat.math.ethz.ch> http://stat.ethz.ch/~maechler/
Seminar fuer Statistik, ETH-Zentrum LEO C16 Leonhardstr. 27
ETH (Federal Inst. Technology) 8092 Zurich SWITZERLAND
phone: x-41-1-632-3408 fax: ...-1228 <><
More information about the R-help
mailing list