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Hi,

In the SIENA model for network dynamics, applicable to longitudinal (panel-type) directed network data on a fixed (or slightly changing) set of nodes, not more than a few 100 nodes, one of the many included effects is the popularity or in-degree effect, expressing that nodes with a high indegree are more popular.
SIENA can be found at
http://stat.gamma.rug.nl/stocnet/

Cheerio,
Tom



-----Original Message-----
From: "Carolan, Brian" <[log in to unmask]>
To: [log in to unmask]
Date: Thu, 20 Nov 2003 11:46:20 -0500
Subject: Preferential Attachment

*****  To join INSNA, visit http://www.sfu.ca/~insna/  *****

Do any of the commonly used SNA programs have an algorithm that tests
for preferential attachment?  Any help/advice would be appreciated.

Thanks,
Brian Carolan
Columbia University

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Tom A.B. Snijders
ICS / Dept. of Sociology
University of Groningen
Grote Rozenstraat 31
9712 GC Groningen
tel. +31-(0)50-3636188 (6469)
http://stat.gamma.rug.nl/snijders/

_____________________________________________________________________
SOCNET is a service of INSNA, the professional association for social
network researchers (http://www.sfu.ca/~insna/). To unsubscribe, send
an email message to [log in to unmask] containing the line
UNSUBSCRIBE SOCNET in the body of the message.