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***** To join INSNA, visit http://www.insna.org ***** Dear Richard, If you are fitting distributions, including "power-law" models to distributions you may also consider the "degreenet" package in R (http://cran.r-project.org/web/packages/degreenet/). R, in the package, run under Windows, Mac, LINUX, etc. It enables likelihood-based inference for skewed count distributions used in network modeling. It had goodness-of-fit, model selection, and other methods as described in the references below. "degreenet" is a part of the "statnet" suite of packages for network analysis (See http://statnetproject.org). Cheers, Mark Some references: 1 Jones JH, Handcock MS (2002a). ³Statistical Evidence Tells Tails of Human Sexual Contacts.² Working Paper 21, Center for Statistics and the Social Sciences. URL http://www.csss.washington.edu/Papers. 2 Jones JH, Handcock MS (2002b). ³Epidemic thresholds exist in human sexual contact networks.² Working Paper 23, Center for Statistics and the Social Sciences. URL http://www.csss.washington.edu/Papers. 3 Jones JH, Handcock MS (2003a). ³Sexual contacts and epidemic thresholds.² Nature, 423(6940), 605606. 4 Handcock MS, Jones JH, Morris M (2003b). ³On ¹Sexual contacts and epidemic thresholds,¹ models and inference for Sexual partnership distributions.² Working Paper 31, Center for Statistics and the Social Sciences. URL http://www.csss.washington.edu/Papers. 5 Jones JH, Handcock MS (2003c). ³An assessment of preferential attachment as a mechanism for human sexual network formation.² Proceedings of the Royal Society of London, B, 270, 11231128. 6 Handcock MS, Jones JH (2004). ³Likelihood-Based Inference for Stochastic Models of Sexual Network Formation.² Theoretical Population Biology, 65, 413422. 7 Handcock MS, Jones JH (2006). ³Interval estimates for epidemic thresholds in two-sex network models.² Theoretical Population Biology, 70, 125134. 8 Hamilton DT, Handcock MS, Morris M (2008). ³Degree distributions in sexual networks: A framework for evaluating evidence.² Sexually Transmitt On 4/15/08 1:23 AM, "Richard Heidler" <[log in to unmask]> wrote: > ***** To join INSNA, visit http://www.insna.org ***** > > > Dear Network Analysts, > > I'm trying to download the Program LOTKA to fit a power law distribution, > but I can't find it. Where can I get it? > > best regards > > Richard Heidler > > _____________________________________________________________________ > 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. _____________________________________________________________________ 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.