50g: an interesting RAND anomaly
03-17-2018, 06:41 PM
Post: #4
 Claudio L. Senior Member Posts: 1,836 Joined: Dec 2013
RE: 50g: an interesting RAND anomaly
I'm no expert in RNG but as far as I understand, the properties of the generated number don't necessarily apply to individual bits.
By properties I mean bias, distribution, and recurrence period. Since an algorithm manipulates each bit differently, you are not supposed to isolate individual bits.
It seems you found that the last 3 bits (hard to define bits on a decimal number, but bear with me) have no bias and good uniform distribution (you got a nice 50/50/50/50), but have a short period, and you even happened to find out what that period is.

Using a different nibble will give you different properties, not necessarily any better.
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 Messages In This Thread 50g: an interesting RAND anomaly - DavidM - 03-17-2018, 05:02 PM RE: 50g: an interesting RAND anomaly - J-F Garnier - 03-17-2018, 05:43 PM RE: 50g: an interesting RAND anomaly - DavidM - 03-17-2018, 06:13 PM RE: 50g: an interesting RAND anomaly - Claudio L. - 03-17-2018 06:41 PM RE: 50g: an interesting RAND anomaly - DavidM - 03-17-2018, 07:38 PM RE: 50g: an interesting RAND anomaly - John Keith - 03-17-2018, 09:17 PM RE: 50g: an interesting RAND anomaly - DavidM - 03-17-2018, 10:23 PM RE: 50g: an interesting RAND anomaly - pier4r - 03-17-2018, 10:43 PM RE: 50g: an interesting RAND anomaly - ttw - 03-18-2018, 02:03 AM RE: 50g: an interesting RAND anomaly - Thomas Okken - 03-18-2018, 03:44 AM RE: 50g: an interesting RAND anomaly - DavidM - 03-18-2018, 04:08 PM RE: 50g: an interesting RAND anomaly - Paul Dale - 03-18-2018, 10:52 PM RE: 50g: an interesting RAND anomaly - John Keith - 03-19-2018, 02:23 PM RE: 50g: an interesting RAND anomaly - DavidM - 03-19-2018, 02:57 PM RE: 50g: an interesting RAND anomaly - pier4r - 03-19-2018, 03:04 PM RE: 50g: an interesting RAND anomaly - DavidM - 03-19-2018, 03:26 PM RE: 50g: an interesting RAND anomaly - ttw - 03-19-2018, 06:31 PM RE: 50g: an interesting RAND anomaly - pier4r - 03-19-2018, 07:08 PM RE: 50g: an interesting RAND anomaly - ttw - 03-19-2018, 07:35 PM RE: 50g: an interesting RAND anomaly - cyrille de brĂ©bisson - 03-20-2018, 06:03 AM RE: 50g: an interesting RAND anomaly - Joe Horn - 03-20-2018, 05:47 PM RE: 50g: an interesting RAND anomaly - DavidM - 03-21-2018, 02:10 AM

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