Re: Randomness Test
- To: mathgroup at smc.vnet.net
- Subject: [mg58029] Re: Randomness Test
- From: Bill Rowe <readnewsciv at earthlink.net>
- Date: Thu, 16 Jun 2005 05:37:40 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
On 6/15/05 at 5:58 AM, rks74us at yahoo.com (Dave miller) wrote: >Okay, I have a sequence of numbers as below. When i do a scatter >plot, there seems to be a bias toward positive numbers. Although >when I run some tests like "runs test", it shows me that the >numbers are random. If that is the case, then when i plot the >numbers on a scatter plot, should'nt they be equally divided up and >below the x axis? My goal is to prove that that there is a >significant bias towards positive numbers. <list of numbers snipped> Since you list contained 9 negative numbers 6 zeros 26 positive numbers There is a clear bias toward positive numbers. A runs test looks for a sequence of the same number and isn't the right test to use to look for a preponderence of positive numbers. The sequence of positive integers is clearly not random but will have no runs and pass a runs test. -- To reply via email subtract one hundred and four