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odd issues

Posted: Wed Oct 15, 2014 3:42 pm
by wtfisthis
Hey,

something's been bothering me so I've come here.

I get a hand history like this far too often.

If you'll notice the amount of duplicate rank hands dealt.

each line is one hand.

Code: Select all

	Line 1682: Dealt to player [9s 5h]
	Line 1717: Dealt to player [Ad 8s]
	Line 1751: Dealt to player [2c Qh]
	Line 1778: Dealt to player [2c 8s]
	Line 1817: Dealt to player [Tc Jc]
	Line 1859: Dealt to player [7d 9c]
	Line 1905: Dealt to player [4s 3d]
	Line 1938: Dealt to player [Th Qs]
	Line 1982: Dealt to player [9h 3h]
	Line 2009: Dealt to player [6d Tc]
	Line 2051: Dealt to player [9s 6s]
	Line 2097: Dealt to player [5h 6c]
	Line 2124: Dealt to player [3d 3h]
	Line 2158: Dealt to player [5c 6d]
	Line 2198: Dealt to player [4d 2d]
	Line 2228: Dealt to player [Th 4s]
	Line 2263: Dealt to player [8c 7c]
	Line 2298: Dealt to player [Js 2h]
	Line 2330: Dealt to player [6c 7d]
	Line 2359: Dealt to player [As 4d]
	Line 2391: Dealt to player [4c Js]
	Line 2433: Dealt to player [7d 7h]
	Line 2475: Dealt to player [Th Qd]
	Line 2514: Dealt to player [5d 2h]
	Line 2555: Dealt to player [2h 4c]
	Line 2597: Dealt to player [3h As]
	Line 2624: Dealt to player [6c 2d]
	Line 2660: Dealt to player [Tc 9d]
	Line 2690: Dealt to player [5c Ks]
	Line 2817: Dealt to player [5c Ad]
	Line 2853: Dealt to player [Ks 5h]
	Line 2897: Dealt to player [Ts 9c]
	Line 2926: Dealt to player [Jh 5c]
	Line 2954: Dealt to player [7h Qh]
	Line 2992: Dealt to player [9h 4s]
	Line 3025: Dealt to player [7c 3d]
	Line 3064: Dealt to player [Td 9c]
	Line 3098: Dealt to player [Kh 3d]
	Line 3131: Dealt to player [6d Kd]
	Line 3169: Dealt to player [7d 9d]
	Line 3208: Dealt to player [4c Qs]
	Line 3245: Dealt to player [6d 4c]
	Line 3427: Dealt to player [Qd 9c]
	Line 3469: Dealt to player [7c 6c]
	Line 3502: Dealt to player [Ts Qs]
	Line 3536: Dealt to player [2c 4c]
	Line 3567: Dealt to player [5h Js]
	Line 3598: Dealt to player [6c Qd]
	Line 3625: Dealt to player [8c Jd]
	Line 3657: Dealt to player [3d 2c]
	Line 3695: Dealt to player [5h 7d]
	Line 3728: Dealt to player [6h Jc]
	Line 3770: Dealt to player [5c 6d]
	Line 3812: Dealt to player [Js 7h]
	Line 3847: Dealt to player [4c 3c]

3 times 24OS
3 times 9TOS

in under an hour.

Re: odd issues

Posted: Wed Oct 15, 2014 3:53 pm
by Kent Briggs
wtfisthis wrote: 3 times 24OS
3 times 9TOS
in under an hour.
So how many times were you expecting? There are only 13 ranks. Also see this:

http://www.briggsoft.com/docs/pmavens/U ... tm#shuffle

Re: odd issues

Posted: Thu Oct 16, 2014 8:09 am
by wtfisthis
After I posted that I continued the table.

later on was dealt 6 consecutive hands with a Q,
then it stopped for a couple of hands,
then was dealt 5 consecutive hands with an A.

several hands after that I received four of a kind J.




As of this moment, I'm on my 15th back to back duplicate ranked hands,
meaning I'm receiving the same ranks twice, this number would be much higher if I were to add in the number of 1 hand in between.

This is out of 5498 hands.

Re: odd issues

Posted: Mon Oct 20, 2014 1:33 pm
by social
wtfisthis wrote:After I posted that I continued the table.

later on was dealt 6 consecutive hands with a Q,
then it stopped for a couple of hands,
then was dealt 5 consecutive hands with an A.

several hands after that I received four of a kind J.




As of this moment, I'm on my 15th back to back duplicate ranked hands,
meaning I'm receiving the same ranks twice, this number would be much higher if I were to add in the number of 1 hand in between.

This is out of 5498 hands.
It would be easier to respond if you showed evidence of what you mean by "15 back to back duplicate ranked hands."
Are you saying that 15 times in a row you got two hands with the same ranks right after one another?

Randomness means that that there should not be any systematic pattern in the results observed...which would result in Predictability of the next outcome(s).

A lot of research shows that Humans believe that they are detecting patterns when none in fact exist.
When you have repeated sampling over and over and over again, you are going to see what appear to be "streaks."

We see it at the Roulette table and Baccarat table, where people are convinced that a Streak of Black is happening, for example, or a streak of Bank winning, when these are just random artifacts.

I have seen 22 Blacks in a row one night, followed by 17 Reds a few spins later....

Anybody playing the "Bet on same as last spin" system would have made a nice score.

But, it was simply a random fluctuation.
The wheels are scrupulously maintained to avoid anybody discovering a biased wheel and profiting...

if the wheel kept producing long strings over and over again, then somebody should be very worried or very rich.

IF you sit and watch random events long enough, you will see every possible outcome and apparent "pattern."

As Kent suggested, you should figure out what the expected outcome of any two ranks being dealt twice in a row...
I doubt that it is all that rare....

I sat at a Blackjack table and saw everyplayer dealt an Ace, including the dealer.

Shocking...but with 7 decks times 4 aces = 28, it is not that rare to have Aces in 6 hands.
You are going to see all sorts of "rare" events...the question is how you interpret them.

You need a long period of testing before concluding that any Bias is occurring....certainly more than 5,000 hands.

Here is an article that talks about how often you can expect to see certain combinations:
http://codeplustech.blogspot.com/p/poke ... andom.html

However, please do keep posting if you think you truly do see something you should not be seeing.