[Numpy-discussion] MA does not handle NaN -- on purpose

Perry Greenfield perry at stsci.edu
Tue Nov 4 08:24:10 CST 2003

Indeed, MA will be in the next release (0.8). Todd isn't in today to 
give an estimate
on when that will be, but the MA work is done. He is mostly fixing 
known bugs in numarray before releasing it.


On Tuesday, November 4, 2003, at 10:00 AM, Paul F. Dubois wrote:

> In writing MA I specifically said that I would not deal with NaN 
> issues because I saw no way to do so in a portable way.
> If you have a disk file with arrays that contain NaN's in them, then 
> you can form a mask using some routine you write in C or Python, using 
> whatever method you believe will identify those elements correctly. 
> After that, MA promises never to use the NaN elements in any 
> operations.
> There is a version of MA being developed for numarray but I haven't 
> checked as to whether it is in the distribution yet.
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