| feasibility_violation_off | Feasibility Violation |
| fraction_variance_explained | Fraction of Variance Explained |
| fraction_variance_explained_perPC | Fraction of Variance Explained per PC |
| mspca | Multiple Sparse PCA |
| print_mspca | Print msPCA Output |
| tpm | Truncated Power Method |
| variance_explained_perPC | Variance Explained per PC |