Checkout the online documentation.
For users:
Installation Guide for MEDYAN v4.0 (PDF) - This document contains compilation instructions for the MEDYAN source code.
Usage Guide for MEDYAN v4.0 (PDF) - This document contains an overview of features and tools for using MEDYAN.
Example Guide for MEDYAN v4.0 (PDF) - This document contains walkthrough-style examples for running the MEDYAN software, as well as visualizing and analyzing its output.
For developers:
Doxygen (HTML) These pages contain detailed class and function documentation for the MEDYAN source code, which may be of use to developers.