[Numpy-discussion] 1.5 release schedule proposal

Pauli Virtanen pav@iki...
Thu Jul 29 03:25:16 CDT 2010


Thu, 29 Jul 2010 02:40:00 +0200, Sturla Molden wrote:
>> Mon, 26 Jul 2010 23:58:11 +0800, Ralf Gommers wrote:
>> Is the current algorithm in the trunk the ziggurat one, or the previous
>> one? IIRC, the problem was that the ziggurat broke reproducibility of
>> random numbers with a given seed.
> 
> Ziggurat (in Enthought) did not break reproducibility but backwards
> compatibility.

Exactly what I meant, it breaks reproducibility of old results with the 
same code.

> It might be better to put a ziggurat module in scipy.random, just to
> avoid confusion. Also it should be modified to use a Mersenne Twister
> instead of the simple uniform generator in Marsaglia's code, as well as
> getting rid of global variables.

Want to submit a patch? ;)

Cheers,
Pauli



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