Is it possible to create a flowchart from MatLab code?

Question

I inherited a MatLab project with a bunch of MatLab files that I need for refactoring. This would help me a lot to create a flow chart or similar. I searched for it and found other people asking the same question many years ago, but nothing recent that works. This is the most recent thread about this:

• http://www.mathworks.com/matlabcentral/answers/28195-automatic-tool-to-generate-sequence-and-class-diagrams-uml

I saw that there is some documentation about a tool for creating class diagrams from MatLab code, but unfortunately the code I have is not OO.

Any ideas would be really appreciated :-)