***** To join INSNA, visit http://www.insna.org ***** Hi Michael, I programmed in R some of the algorithms including the Jackson & Rogers model for my Social Networks course. Please have a look at the course website: http://merlin.fae.ua.es/vanderleij/socialnetworks_0809/index.htm in particular the file gennetw.R, Homework Set 6 and its solution program. A disclaimer, though. Feel free to use any files on the site (with the appropriate acknowledgements, of course), but be aware that I haven't tested it sufficiently for general use. If you find any mistakes or have any doubts, then please let me know, such that I can update the files. Kind regards, Marco On Sun, 18 Jul 2010 16:28:37 +0200, Haenlein, Michael wrote > ***** To join INSNA, visit http://www.insna.org ***** > > Dear colleagues, > > For a research project I'm currently working on, I need to generate > a large number of random graphs. Currently, I'm doing this using the > "igraph" library within the R computing environment and specifically > the functions "erdos.renyi.game" and "watts.strogatz.game". The > problem is, however, that neither an Erdos-Renyi random graph nor a > Watts-Strogatz small world graph have the same set of > characteristics than real life social networks. > > For this reason, I'd like to try out a different method, namely the > one described in a paper by Matthew Jackson and Brian Rogers > ("Meeting strangers and friends of friends: How random are social > networks"), published in the American Economic Review (Vol. 97, No. > 3) in June 2007. I have a Mathematica code that is able to generate > random graphs consistent with this model, but my knowledge of > Mathematica is rather limited. Additionally, I'm running my main > analysis in R, which means that at the moment I'm generating graphs > in Mathematica, export them to a txt file and import them again into > R. Evidently, this process is quite manual and tedious. > > My question is therefore whether anyone knows of a code within the R > computing environment that is able to generate random graphs > consistent with the Jackson & Rogers model. Alternatively, it there > is some way to call Mathematica within R that would be helpful as well. > > Thanks very much for letting me know, > > Michael > > Michael Haenlein > Professor of Marketing > ESCP Europe - The School of Management for Europe > 79, Avenue de la République | 75011 Paris | France > > _____________________________________________________________________ > SOCNET is a service of INSNA, the professional association for social > network researchers (http://www.insna.org). To unsubscribe, send > an email message to [log in to unmask] containing the line > UNSUBSCRIBE SOCNET in the body of the message. -- Dr Marco J. van der Leij University Lecturer Faculty of Economics, University of Cambridge Sidgwick Avenue, Cambridge CB3 9DD, United Kingdom Phone: +44 1223 335207. E-mail: [log in to unmask] Assistant Professor (on leave) Dpto. Fundamentos del Análisis Económico Universidad de Alicante Homepage: http://merlin.fae.ua.es/vanderleij/ _____________________________________________________________________ SOCNET is a service of INSNA, the professional association for social network researchers (http://www.insna.org). To unsubscribe, send an email message to [log in to unmask] containing the line UNSUBSCRIBE SOCNET in the body of the message.