[Numpy-discussion] numpy.filled, again

Benjamin Root ben.root at ou.edu
Thu Jun 13 16:36:30 EDT 2013

On Thu, Jun 13, 2013 at 9:36 AM, Aldcroft, Thomas <
aldcroft at head.cfa.harvard.edu> wrote:

> On Wed, Jun 12, 2013 at 2:55 PM, Eric Firing <efiring at hawaii.edu> wrote:
>> On 2013/06/12 8:13 AM, Warren Weckesser wrote:
>> > That's why I suggested 'filledwith' (add the underscore if you like).
>> > This also allows a corresponding masked implementation, 'ma.filledwith',
>> > without clobbering the existing 'ma.filled'.
>> Consensus on np.filled? absolutely not, you do not have a consensus.
>> np.filledwith or filled_with: fine with me, maybe even with
>> everyone--let's see.  I would prefer the underscore version.
> +1 on np.filled_with.  It's unique the meaning is extremely obvious.  We
> do use np.ma.filled in astropy so a big -1 on deprecating that (which would
> then require doing numpy version checks to get the right method).  Even
> when there is an NA dtype the numpy.ma users won't go away anytime soon.

I like np.filled_with(), but just to be devil's advocate, think of the

np.filled_with((10, 24), np.nan)

As I read that, I am filling the array with (10, 24), not NaNs.  Minor
issue, for sure, but just thought I raise that.

-1 on deprecation of np.ma.filled().  -1 on np.filled() due to collision
with np.ma (both conceptually and programatically).

np.values() might be a decent alternative.

Ben Root
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