What's new?

• July, 2007: second, updated release of StOCNET 1.8, with some cosmetics performed on the SIENA model specification screen, and the possibility in SIENA to specify interaction effects for the behavioral evolution part of models. A pre-release of the documentation regarding that option can be seen in the provisional SIENA manual at Tom Snijders' website at the University of Oxford (p.56).
  
  
• April, 2007: official release of StOCNET 1.8, containing a new version of SIENA (version 3.1). This SIENA version contains new options of maximum likelihood and Bayesian estimation, and is (for most data sets) considerably faster than earlier versions. Bugs of the beta release, related to directory settings and the inclusion of changing dyadic covariates in SIENA, are eliminated.
  
  Furthermore, this StOCNET release contains the option to estimate exponential random graph models with the PNet module developed at the University of Melbourne. For successfully running this module, you need to download it from the PNet website and put it in the main StOCNET directory. Additionally, installation of the JAVA Platform and the Microsoft .NET Framework is required (consult the website for details).

• February, 2006: official release of StOCNET 1.7, containing new versions of SIENA (version 2.4a) and p2 (version 4), as well as a new p2 interface. The main innovations in p2 are about modeling multiple networks, either in a multilevel model or in a multivariate model. The main innovations in SIENA are the possibility to include temporally changing dyadic covariates, and additional specifications for finetuning the estimation process. Compared to the beta release, only the SIENA software was changed (elimination of some bugs, one of which concerned the rate function). The new SIENA executables can also be downloaded separately.

... and what came earlier ...

• The StOCNET Users' Group was created in January 2005. Purpose of the group is the exchange of information and technical advice on the use of the different StOCNET modules. Address of the users' group: http://groups.yahoo.com/groups/stocnet/.

• Earlier versions of StOCNET :
  February 2005 (version 1.6) with new interfaces for steering the SIENA module;
  January 2005 (version 1.5), with the module PacNet and the new version SIENA 2.1, allowing dependent behavioral variables;
  April 2003 (version 1.4), with the module Ultras, export facilities, symmetry transformations, and various other improvements;
  August 2002 (version 1.3), with the modules p2 and ZO, and also the possibilities to transform and select network data as well as context-dependent data description in the Examine option;
  October 2001 (version 1.1), with the modules BLOCKS and SIENA.

• Released versions of the program BLOCKS :
  March 2004 (version 1.6);
  July 2002 (version 1.53);
  October 2001 (version 1.51).

• Released versions of the program p2 :
  January, 2004 (version 2.010);
  February, 2003 (version 2.007);
  September, 2002 (version 2.004);
  July, 2002 (version 2.003).

• Released Windows versions of the program SIENA :
  July 2005 (version 2.2b);
  March 2005 (version 2.1a);
  January 2005 (version 2.1) (allowing dependent behavioral variables);
  October 2003 (version 1.99);
  January 2003 (version 1.98);
  July 2002 (version 1.97) (including SIENA - p*);
  October 2001 (version 1.90);
  (and DOS versions 1997-2001).

• Released versions of the program Ultras :
  April 2003 (version 1.2);
  February 2003 (version 1.1).

• Released versions of the program ZO :
  July 2002 (version 2.3);
  (and DOS versions 1991-2001).