[Numpy-discussion] Maskedarray implementations : new developer zone wiki page

Pierre GM pgmdevlist@gmail....
Sat Aug 25 19:21:26 CDT 2007


On Saturday 25 August 2007 15:48:00 Eric Firing wrote:
> I've made a couple of small "emergency" edits, but a separate page would
> make things much more visible and less confusing.

So here it is:
http://projects.scipy.org/scipy/numpy/wiki/MaskedArrayAlternative

Please note the section : Optimizing maskedarray. You'll find the quick 
description of a test case (three implementations of divide) that emerged 
from on off-list discussion with Eric Firing.
The problem can be formulated as "do we need to fill masked arrays before 
processing or not ?". Eric is in favor of the second solution (prefilling 
according to the domain mask),  while the more it goes, the more I'm leaning 
towards the third one "bah, let numpy take care of that."

I would be very grateful if you could post your comments/ideas/suggestions 
about the three implementations on that list. This is an issue I'd like to 
solve ASAP. 

Thanks a lot in advance
Pierre



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