This is a repository of functions relevant to network/graph analysis, organized by functionality. These routines are useful for someone who wants to start hands-on work with networks fairly quickly, explore simple graph statistics, distributions, simple visualization and compute common network theory metrics.
The original (2006-2011) version of these routines was written in Matlab, and is still hosted by strategic.mit.edu (http://strategic.mit.edu/downloads.php?page=matlab_networks). The octave-networks-toolbox inherits the original BSD open source license and copyright, provided at the end of this file. Many of the routines might still be compatible with Matlab. For Octave/Matlab differences, see http://en.wikibooks.org/wiki/MATLAB_Programming/Differences_between_Octave_and_MATLAB.
The code currently runs on GNU Octave version 6.3.0. No specific library installation necessary. Dependencies between functions are documented in the function headers. The routines can be called directly from the Octave prompt, either in the same directory or from anywhere if the toolbox folder is added to the path. For example:
octave:1> # running numNodes.m
octave:1> numNodes([0 1 1; 1 0 1; 1 1 0])
ans = 3With newer versions of Matlab, the Octave branch may not always be Matlab-compatible, for example due to syntax changes. Consider exploring forks that focus on Matlab compatibility. There is currently no plan for the Octave original version to be synchronized with Matlab.
This code was originally written and posted by Gergana Bounova. It is undergoing continuous expansion and development. Collaborators are very welcome. Thank you for the many comments and bug reports so far! Contributions via email are usually mentioned in the function header. Please use github for comments, questions, suggestions, issues, bugs or simply fork.
The functions are organized in 11 categories: basic routines, diagnostic routines, representation routines, centralities, distances, simple motif routines, linear algebra functions, modularity routines, graph construction models, visualization and auxiliary. These categories reflect roles/functionality and topics in the literature, but they are arbitrary, and mostly used for documentation purposes.
Documentation is available in the Functions Manual (https://github.com/aeolianine/octave-networks-toolbox/blob/master/functions_manual.pdf). The manual contains general background information, function headers, code examples, and references. For some functions, additional background, definitions or derivations are included.
If you want to cite this code, you can use DOI: 10.5281/zenodo.22398 (http://dx.doi.org/10.5281/zenodo.22398). This citation refers to the second release, as of August 2 2015.
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