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Re: The cube root of pi (was Re: st: GLLAMM help)


From   Stas Kolenikov <skolenik@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: The cube root of pi (was Re: st: GLLAMM help)
Date   Sat, 2 Oct 2004 21:09:37 -0400

No, I think the power will take precedence.

. di 2^3/2
4

. di 2^3
8

It was meant to be the variance of the logistic distribution, or level
1 variance not reported by -gllamm-. And yes, it is the Greek pi:

. di _pi
3.1415927

On Sun, 3 Oct 2004 01:42:55 +0100 (BST), Clive Nicholas
<clive.nicholas@newcastle.ac.uk> wrote:
> Dana Shills replied to Stas Kolenikov:
> 
> [...]
> 
> > In the total variance you mention, what is _pi^2/6? Im sorry if this is
> > too
> > basic a question but could you at least direct me to some elementary
> > reference material..I have only used SAS's PROC MIXED for this kind of
> > variance component analysis before.
> >
> > _pi^2/6 + 0.054 + 0.012.
> 
> I'm not entirely sure what kind of variance component this represents, but
> it should be taken as the cube root of pi (as in the Greek pi). I'm not
> sure if pi = 3.142 or something else in this case. I am sure that we will
> be enlightened eventually.
> 


-- 
Stas Kolenikov
http://stas.kolenikov.name
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