| add_identifiability | Apply Identifiability Constraints |
| cv.sparseGFM | Cross-Validation for Sparse Generalized Factor Model |
| eval.space | Evaluate Subspace Angles Between Two Matrices |
| evaluate_performance | Evaluate Variable Selection Performance |
| facnum.sparseGFM | Determine the Number of Factors for Sparse Generalized Factor Model |
| sparseGFM | Sparse Generalized Factor Model with Multiple Penalty Functions |