On 22/02/2009 3:16 PM, Peter Dalgaard wrote:
macra...@alum.mit.edu wrote:
In 2.8.0/Windows Vista:
When 'unique' gives a type error message, it prints out even if errors
are being caught:
try(unique(quote(hello)),silent=TRUE)
hello
This comes from the .Internal unique routine:
try(.Internal(unique(quote(hello),NULL,NULL)),silent=TRUE)
hello
I guess it is using the internal equivalent of print rather than the
internal equivalent of stop.
silent=TRUE is a red herring (this has nothing to do with try()).
However, inside do_duplicated (unique.c) we have
if (!isVector(x)) {
PrintValue(x);
error(_("%s() applies only to vectors"),
(PRIMVAL(op) == 0 ? "duplicated" : "unique"));
}
This is due to
------------------------------------------------------------------------
r32306 | ripley | 2004-12-23 22:06:27 +0100 (Thu, 23 Dec 2004) | 2 lines
Apparently unique/duplicated are supposed to work on NULL, despite their
help!
...which makes little sense to explain the PrintValue(x). I suspect this
is a debugging printout that was inadvertently left in.
Now removed.
Duncan Murdoch
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