| build_network | Build Adjacency Matrix |
| CMSE | Circular Mean Squared Error |
| evaluate_network | Evaluate Estimated Network |
| fit_circular_model | Fit Circular Graphical Model |
| log_likelihood | Log-Likelihood for Circular Model |
| model_fit_cmse | Fit Circular Model Using CMSE |
| mod_twopi | Wrap Angles to (-pi, pi) |
| plot_network | Plot Estimated Network |
| residual_fnc | Compute Residuals |