Post Reply 
Randomize a List problem
10-15-2020, 06:24 PM
Post: #32
RE: Randomize a List problem
(10-15-2020 04:43 PM)Albert Chan Wrote:  It is a bad idea to use modulo to pick random elements.
see http://www.azillionmonkeys.com/qed/random.html

This is especially bad for shuffling list. Bias accumulate.

The method described in that same link to mitigate the problem using a range check is exactly what LSHUF does. Any intermediate results for the random integer that are outside the range identified are rejected, and the next value is computed until it is in range.
Find all posts by this user
Quote this message in a reply
Post Reply 


Messages In This Thread
Randomize a List problem - Hlib - 09-14-2020, 04:38 PM
RE: Randomize a List problem - John Keith - 09-14-2020, 06:08 PM
RE: Randomize a List problem - Albert Chan - 09-14-2020, 07:32 PM
RE: Randomize a List problem - Hlib - 09-14-2020, 08:51 PM
RE: Randomize a List problem - Albert Chan - 09-14-2020, 11:41 PM
RE: Randomize a List problem - Werner - 09-15-2020, 06:41 AM
RE: Randomize a List problem - Werner - 09-15-2020, 09:47 AM
RE: Randomize a List problem - Albert Chan - 09-15-2020, 04:36 PM
RE: Randomize a List problem - ijabbott - 09-15-2020, 06:39 PM
RE: Randomize a List problem - John Keith - 09-15-2020, 08:56 PM
RE: Randomize a List problem - Albert Chan - 09-15-2020, 09:34 PM
RE: Randomize a List problem - Werner - 09-16-2020, 06:43 AM
RE: Randomize a List problem - John Keith - 09-16-2020, 11:51 AM
RE: Randomize a List problem - Albert Chan - 09-15-2020, 01:00 AM
RE: Randomize a List problem - Wes Loewer - 09-15-2020, 04:10 AM
RE: Randomize a List problem - John Keith - 09-15-2020, 01:42 PM
RE: Randomize a List problem - Hlib - 09-15-2020, 03:57 PM
RE: Randomize a List problem - Albert Chan - 09-15-2020, 07:53 PM
RE: Randomize a List problem - Albert Chan - 09-17-2020, 12:11 PM
RE: Randomize a List problem - Hlib - 09-17-2020, 09:36 AM
RE: Randomize a List problem - John Keith - 09-17-2020, 12:20 PM
RE: Randomize a List problem - Albert Chan - 09-17-2020, 01:42 PM
RE: Randomize a List problem - John Keith - 09-17-2020, 08:21 PM
RE: Randomize a List problem - John Keith - 09-18-2020, 03:31 PM
RE: Randomize a List problem - Albert Chan - 09-18-2020, 10:19 PM
RE: Randomize a List problem - Albert Chan - 09-19-2020, 12:29 AM
RE: Randomize a List problem - pier4r - 10-13-2020, 07:13 PM
RE: Randomize a List problem - DavidM - 10-14-2020, 04:12 AM
RE: Randomize a List problem - Albert Chan - 10-15-2020, 04:43 PM
RE: Randomize a List problem - DavidM - 10-15-2020 06:24 PM
RE: Randomize a List problem - pier4r - 10-14-2020, 06:55 PM
RE: Randomize a List problem - DavidM - 04-26-2024, 03:17 PM



User(s) browsing this thread: 3 Guest(s)