[Numpy-discussion] Any Numeric or numarray users on this list? (original) (raw)

Travis Oliphant oliphant.travis at ieee.org
Tue Jun 13 12:52:07 EDT 2006

konrad.hinsen at laposte.net wrote:

On 10.06.2006, at 01:57, Travis Oliphant wrote:

You may be interested to note that I just added the RNG interface to numpy for back-wards compatibility. It can be accessed and used by re-placing import RNG with import numpy.random.oldrng as RNG Thanks, that will facilitate the transition. Is this just a compatible interface, or actually the same algorithm as in the original RNG module?

If I understand your question correctly, then it's just a compatibility interface. I'm not sure which part of the original algorithm you are referring to.

The random numbers are generated by the Mersenne Twister algorithm in mtrand. Each generator in numpy.random.oldrng creates a new RandomState for generation using that algorithm. The density function calculations were taken from RNG, but the random-number generators themselves are methods of the RandomState.

-Travis

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