Produce graph with optimum node positioning from adjacency matrix

Hi all,

I have an adjacency matrix which at the moment I am then drawing a graph, with nodes and edges, in a pencil--this is laborious. Anyone know how to do this in Octave (or MATLAB)? Hopefully something would take my matrix and produce a nice graph, with optimally positioned nodes. (I found gplot, however this needs to coordinates of the nodes.)

If not, anyone know of any free software that can do this?

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If you have Bioinformatics toolbox you can use biograph function.

Another option is to install free Graphviz ( and use "MATLAB - GraphViz interface" from File Exchange:

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James_h1023Author Commented:
Thanks for a quick reply, i'll have a look at them.

James_h1023Author Commented:
Thanks, i'm using graphviz with the additional MATLAB file.
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