This is not a question on PlantUML, but an announcement that I have uploaded m2uml to Matlab File Exchange
http://uk.mathworks.com/matlabcentral/fileexchange/59722-m2uml/content/html/m2uml_v11_hyperlinks_tooltips_publish.html
http://uk.mathworks.com/matlabcentral/fileexchange/59722-m2uml
m2uml is a semi-automatic tool, which creates a class diagram from Matlab code.
I envision m2uml more as a tool to support design and implementation of software, than to produce diagrams for the documentation.
Your comments are appreciated and will help me improve m2uml.
.
