[Numpy-discussion] nan_to_num and bool arrays

Robert Kern robert.kern@gmail....
Fri Dec 11 15:14:19 CST 2009


On Fri, Dec 11, 2009 at 14:41, Keith Goodman <kwgoodman@gmail.com> wrote:
> On Fri, Dec 11, 2009 at 12:08 PM, Bruce Southey <bsouthey@gmail.com> wrote:

>> So I agree that it should leave the input untouched when a non-float
>> dtype is used for some array-like input.
>
> Would only one line need to be changed? Would changing
>
> if not issubclass(t, _nx.integer):
>
> to
>
> if not issubclass(t, _nx.integer) and not issubclass(t, _nx.bool_):
>
> do the trick?

That still leaves strings, voids, and objects. I recommend:

  if issubclass(t, _nx.inexact):

Arguably, one should handle nan float objects in object arrays and
float columns in structured arrays, but the current code does not
handle either of those anyways.

-- 
Robert Kern

"I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth."
  -- Umberto Eco


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