There is no "network toolbox" inside of the MATLAB Bioinformatics Toolbox. What specific functions or features are you interested in? Regarding network visualization in the context of the Bioinformatics Toolbox, the following examples may be helpful:
- http://www.mathworks.com/help/bioinfo/examples/working-with-graph-theory-functions.html
- http://www.mathworks.com/help/bioinfo/examples/working-with-the-clustergram-function.html
- http://www.mathworks.com/help/bioinfo/examples/visually-representing-interconnected-data.html
- http://www.mathworks.com/help/bioinfo/examples/visualizing-the-three-dimensional-structure-of-a-molecule.html
