[Numpy-discussion] feedback request: proposal to add masks to the core ndarray

Charles R Harris charlesr.harris@gmail....
Thu Jun 23 18:02:40 CDT 2011


On Thu, Jun 23, 2011 at 4:43 PM, Mark Wiebe <mwwiebe@gmail.com> wrote:

> On Thu, Jun 23, 2011 at 5:24 PM, Pierre GM <pgmdevlist@gmail.com> wrote:
>
>>
>> On Jun 23, 2011, at 11:55 PM, Mark Wiebe wrote:
>>
>> > On Thu, Jun 23, 2011 at 4:46 PM, Charles R Harris <
>> charlesr.harris@gmail.com> wrote:
>> > On Thu, Jun 23, 2011 at 2:53 PM, Mark Wiebe <mwwiebe@gmail.com> wrote:
>> > Enthought has asked me to look into the "missing data" problem and how
>> NumPy could treat it better. I've considered the different ideas of adding
>> dtype variants with a special signal value and masked arrays, and concluded
>> that adding masks to the core ndarray appears is the best way to deal with
>> the problem in general.
>> >
>> > I've written a NEP that proposes a particular design, viewable here:
>> >
>> >
>> https://github.com/m-paradox/numpy/blob/cmaskedarray/doc/neps/c-masked-array.rst
>>
>> Mmh, after timeseries, now masked arrays... Mark, I start to see a pattern
>> here ;)
>
>
>  I think it speaks to what's on Enthought's mind, in any case. :)
>

What is the thinking at Enthought about this? I sense a meeting in the
background and it would be nice to know what the motivations were.

<snip>

Chuck
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