| Angle | Standardized last principal angle |
| dataSim | Simulate data |
| Glass | Glass data |
| ltspca | Principal Component Analysis Based on Least Trimmed Squaers (LTS-PCA) |
| ltsspca | Sparse Principal Component Analysis Based on Least Trimmed Squaers (LTS-SPCA) |
| ltsspcaRw | Reweighted LTS-SPCA |
| mydiagPlot | Make diagnostic plot using the estimated PC subspace |
| sPCA_rSVD | Sparse Principal Component Analysis via Regularized Singular Value Decompsition (sPCA-rSVD) |