| EFM | The EFM function is to generate Elliptical Factor Models data. |
| elliptical_errors | Calculate errors for elliptical distributions |
| FanPC.EFM | Apply the FanPC method to the Elliptical Factor Model |
| incremental_perturb_pca | Incremental Perturbation PCA |
| PC1.EFM | Apply the PC method to the Elliptical Factor Model |
| PPC | PPC: Principal Projection Components |
| PPC1.EFM | Apply the PPC method to the Elliptical Factor Model |
| robust_perturb_pca | Random Perturbation Robust PCA |
| SOPC.EFM | SOPC Estimation Function for Elliptical Factor Model |