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
