Daniel@0: adj = rand(4) > 0.5; Daniel@0: descriptions = {'First Random Node','Yet another node','The thrid one','The final node'}; Daniel@0: colors = [0 0.5 0.2]; % either use string names for colors or normalized rgb values Daniel@0: graphViz4Matlab('-adjMat',adj,'-nodeDescriptions',descriptions,'-nodeColors',colors); Daniel@0: Daniel@0: % double click on the nodes to see and edit descriptions.