On Fri, Jul 18, 2014 at 4:49 AM, Johann Hibschman <jhibsch...@gmail.com> wrote:
> In
> principle, (NA == 1.0) should be a NA (missing) truth value, as should
> (NA == NA), but in practice having it be False is more useful.

This is actually fairly easily implemented, if you ever want it.

class NAType:
    def __repr__(self): return "NA"
    def __eq__(self, other): return self
    __lt__ = __gt__ = __le__ = __ge__ = __ne__ = __eq__
NA = NAType()

ChrisA
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