[SciPy-User] Is kKahan summation used in numpy.mean?

Yosef Meller yosefmel@post.tau.ac...
Tue Apr 6 07:26:03 CDT 2010


On יום שלישי 06 אפריל 2010 12:22:38 you wrote:
> I seem to be getting a much better accuracy from numpy.mean then from a
>  loop of a += val; a /= num_vals. I've seen some discussion on mailing
>  lists about using Kahan summation for mean(), so I suspect this is the
>  reason, but I can't for the life of me find if it was finally implemented
>  or not. Anybody knows?
> 
> Also, if you know where it is in the numpy source tree, please tell - I
> searched it the whole morning.
> 
> Thanks,
> Yosef.
> 

Never mind, I had a sneaky bug somewhere else that caused this. 


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