* Quick PRNG question
@ 2019-09-24 7:59 Ethan Gardener
2019-09-24 9:45 ` [9front] " Julius Schmidt
0 siblings, 1 reply; 4+ messages in thread
From: Ethan Gardener @ 2019-09-24 7:59 UTC (permalink / raw)
To: 9front
Hi Aiju! I remember some time back you laughed at Mersenne twister PRNG, citing another PRNG as simpler and better. What was the better PRNG?
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [9front] Quick PRNG question
2019-09-24 7:59 Quick PRNG question Ethan Gardener
@ 2019-09-24 9:45 ` Julius Schmidt
2019-09-24 9:53 ` Steve Simon
2019-09-28 18:11 ` Ethan Gardener
0 siblings, 2 replies; 4+ messages in thread
From: Julius Schmidt @ 2019-09-24 9:45 UTC (permalink / raw)
To: 9front
Look up xorshift and its variants
It's about a million times simpler than Mersenne twister and some of
the variants are much better at passing statistical tests.
On Tue, 24 Sep 2019, Ethan Gardener wrote:
> Hi Aiju! I remember some time back you laughed at Mersenne twister PRNG, citing another PRNG as simpler and better. What was the better PRNG?
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [9front] Quick PRNG question
2019-09-24 9:45 ` [9front] " Julius Schmidt
@ 2019-09-24 9:53 ` Steve Simon
2019-09-28 18:11 ` Ethan Gardener
1 sibling, 0 replies; 4+ messages in thread
From: Steve Simon @ 2019-09-24 9:53 UTC (permalink / raw)
To: 9front
i would normally defer to “numerical recipes” in such matters. if you just want a square distribution then xor and a shift register is nice and simple. the book also has a slower algorithm which reshapes this to a gaussian without much effort.
-Steve
> On 24 Sep 2019, at 10:45 am, Julius Schmidt <aiju@phicode.de> wrote:
>
> Look up xorshift and its variants
>
> It's about a million times simpler than Mersenne twister and some of the variants are much better at passing statistical tests.
>
>> On Tue, 24 Sep 2019, Ethan Gardener wrote:
>>
>> Hi Aiju! I remember some time back you laughed at Mersenne twister PRNG, citing another PRNG as simpler and better. What was the better PRNG?
>>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [9front] Quick PRNG question
2019-09-24 9:45 ` [9front] " Julius Schmidt
2019-09-24 9:53 ` Steve Simon
@ 2019-09-28 18:11 ` Ethan Gardener
1 sibling, 0 replies; 4+ messages in thread
From: Ethan Gardener @ 2019-09-28 18:11 UTC (permalink / raw)
To: 9front
Thanks, both of you. Sorry for list noise, not sure how I sent it to the wrong address.
On Tue, Sep 24, 2019, at 10:45 AM, Julius Schmidt wrote:
> Look up xorshift and its variants
>
> It's about a million times simpler than Mersenne twister and some of
> the variants are much better at passing statistical tests.
>
> On Tue, 24 Sep 2019, Ethan Gardener wrote:
>
> > Hi Aiju! I remember some time back you laughed at Mersenne twister PRNG, citing another PRNG as simpler and better. What was the better PRNG?
> >
>
^ permalink raw reply [flat|nested] 4+ messages in thread
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2019-09-24 7:59 Quick PRNG question Ethan Gardener
2019-09-24 9:45 ` [9front] " Julius Schmidt
2019-09-24 9:53 ` Steve Simon
2019-09-28 18:11 ` Ethan Gardener
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