R-beta: losing attributes in binary ops

Gordon Maclean maclean at stout.atd.ucar.edu
Tue Jan 6 19:05:02 CET 1998

Thanks to Thomas Lumley for the very quick fix of the NextMethod(.Generic)
bug.  The patch enclosed in his message to r-help fixed that problem

But..., I've got another one.

	x <- 1:4
	attr(x,"foo") <- "bar"	
	attributes(x < 4)

returns NULL.

The "foo" attribute has been lost in the "x < 4" operation.
The blue book says that the result of binary operations should have
the attributes of the longer operand.

Gordon Maclean

Nat'l Center for Atmospheric Research
Boulder CO

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