graph and network algorithms, laplacian function missing

Hi, I'm running Matlab R2015b with the following toolboxes: Bioinformatics Toolbox, Image Processing Toolbox, Neural Network Toolbox, Optimization Toolbox, Statistics and Machine Learning Toolbox, Symbolic Math Toolbox.

I'm currently work a lot with the new Graph netzwork algorithm functions (love it), but somehow the laplacian function seems to be missing

http://de.mathworks.com/help/matlab/ref/graph.laplacian.html?s_tid=srchtitle

Did I miss something?

Thanks Dom

Answer 1

[Steven Lord]

You're working with a digraph (a directed graph) rather than a graph (undirected.) Graph objects have a LAPLACIAN method. Digraph objects do not.