POV-Ray : Newsgroups : povray.off-topic : Chi-squared test : Re: Chi-squared test Server Time
4 Sep 2024 09:16:10 EDT (-0400)
  Re: Chi-squared test  
From: Invisible
Date: 5 Mar 2010 06:39:55
Message: <4b90ed8b$1@news.povray.org>
Phil Cook v2 wrote:
> And lo On Fri, 26 Feb 2010 16:37:13 -0000, Invisible <voi### [at] devnull> did 
> spake thusly:
> 
>> OK, so I finally have to ask. What the hell *is* a chi-squared test? 
>> And why does POV-Ray need one?
> 
> It's a confidence test so as Le_Forgeron stated it's used to keep the 
> processing down i.e. should I bother with this sample? Chi-squared 
> returns that there's only a 1% chance there's something significant 
> there, so no I won't bother.

OK, so how do you determine that an arbitrarily discontinuous function 
has been sampled to within an acceptable level of confidence? What's the 
algorithm here?


Post a reply to this message

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.