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***** To join INSNA, visit http://www.insna.org ***** Hi Thomas, 

In the meantime, Burt's constraint is implemented in iGraph. If you are already working in python, its not particularly difficult to move your network from one package to the other. The only real catch is that the packaged versions of iGraph (0.54) do not make querying nodes by label/name as easy as it is in Networkx. iGraph 0.6 fixes this but you'll have to build from source. 

The iGraph team have a very active mailing list for more help (its worth checking the archives or lots of code snippets): <[log in to unmask]>

Take care,
BERNiE 

Dr Bernie Hogan
Research Fellow, Oxford Internet Institute
University of Oxford

On 5 Jun 2012, at 15:27, Jordi Torrents wrote:

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Hi Thomas,

At the moment there is no implementation of structural holes measure
as defined by Burt in the official release of NetworkX (1.6). However
there are two proposals in the development site with code for
computing this measure:

https://networkx.lanl.gov/trac/ticket/191
https://networkx.lanl.gov/trac/ticket/435

Neither is well tested, and both are quite old and seem kind of
abandoned. So use at your own risk. If you decide to use any of them,
please consider posting a comment to the NetworkX dev site with
feedback.

Salut!

2012/6/5, Thomas Plotkowiak <[log in to unmask]>:
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1. A question for those who use the python SNA library networkX. Is anyone
familiar if there is an implementation of burts structural holes measures
in networkX?

I've checked the discussion group:
https://groups.google.com/group/networkx-discuss/
and the docs: http://networkx.lanl.gov/reference/algorithms.html

but couldn't find anything. I know that UCINet has measures for those as
shown here: http://faculty.ucr.edu/~hanneman/nettext/C9_Ego_networks.htm

2. On a more general note: Is there any document discussing the network
oriented measure of social capital (brokerage or bonding) given a network
and its structure?
The best I could find is this very interesting document
http://www.horizons.gc.ca/doclib/Measurement_E.pdf with the
title:"Measurement of Social Capital  Reference Document
for Public Policy Research, Development, and Evaluation"

Best Regards
Thomas Plotkowiak
Research Assistant
MCM Institute
St. Gallen

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