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Re: [igraph] Mean and Variance of Triad Census

From: Gábor Csárdi
Subject: Re: [igraph] Mean and Variance of Triad Census
Date: Wed, 8 Dec 2010 13:13:01 +0100

Hi Dai,

this is not included in igraph. Can you point us to the paper in which
this methodology was published?


On Tue, Dec 7, 2010 at 1:59 AM, Dai Shizuka <address@hidden> wrote:
> Hey folks,
> Is there an easy way to calculate the variance of the expected values of
> components in a triad census? I am trying to conduct some stats on structure
> based on the Davis-Leinhardt-Holland approach, using expected frequencies of
> different triad configurations based on a U|MAN distribution. I have figured
> out how to calculate mean (expected) triad frequencies of random graphs, but
> I am not sure about the variance of these values in order to calculate the
> test statistic, tau. I believe these functions were standard in PAJEK and
> UCINET, but I'd love to do this in R.
> Thanks,
> Dai
> ----------
> Daizaburo Shizuka
> Postdoctoral Scholar
> Ecology & Evolution
> University of Chicago
> 1101 East 57th Street, Chicago, IL 60637
> _______________________________________________
> igraph-help mailing list
> address@hidden
> http://lists.nongnu.org/mailman/listinfo/igraph-help

Gabor Csardi <address@hidden>     UNIL DGM

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