As described in
<https://bugs.r-project.org/bugzilla3/show_bug.cgi?id=17242>, R base
functions are currently inconsistent in asking interactive "yes/no" type
questions. One solution to this is to have a function to do it, and to
use it consistently.
Rather than just writing such a function and possibly missing some
desirable feature, I'd like to ask if anyone can point to an existing
one that is perfect (or nearly perfect, and point out what changes would
be desirable)?
Duncan Murdoch
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