| BcorSIS | A Generic Sure Independence Screening Procedure | 
| CAS | Category-Adaptive Variable Screening for Ultra-High Dimensional Heterogeneous Categorical Data | 
| CISIS | Model-Free Feature screening Based on Concordance Index for Ultra-High Dimensional Categorical Data | 
| Cor | Parallel function This is a parallel function about the projection correlation. | 
| CSIS | Model-Free Feature screening Based on Concordance Index Statistic | 
| DCSIS | Feature Screening via Distance Correlation Learning | 
| GendataAFT | Generate simulation data (Survival data based on the accelerated failure time model) | 
| GendataCox | Generate simulation data (Survival data based on the Cox model) | 
| GendataGP | Generate simulation data (Complete data with group predictors) | 
| GendataIM | Generate simulation data (Complete data for intersection variables) | 
| GendataLDA | Generate simulation data (Categorial based on linear discriminant analysis model) | 
| GendataLGM | Generate simulation data (Binary category data based on logistic model) | 
| GendataLM | Generate simulation data (Complete data based on linear models) | 
| GendataMRM | Generate simulation data (Multivariate response models) | 
| GendataPM | Generate simulation data (Discrete response data based on poisson model) | 
| GendataTM | Generate simulation data (Complete data based on transformation model) | 
| get_arccos | Arccos function | 
| Kfilter | The Kolmogorov filter for variable screening | 
| Kfilter_fused | The fused kolmogorov filter: a nonparametric model-free screening method | 
| Kfilter_single | The Kolmogorov filter for variable screening in high-dimensional binary classification | 
| MDCSIS | Martingale Difference Correlation and Its Use in High-Dimensional Variable Screening | 
| MFSIS | Model-free feature screening procedures | 
| MVSIS | Model-Free Feature Screening for Ultrahigh Dimensional Discriminant Analysis | 
| PCSIS | Model-Free Feature Screening Based on the Projection Correlation | 
| projection_corr | Projection correlation function | 
| PSIS | Ultrahigh-Dimensional Multiclass Linear Discriminant Analysis by Pairwise Sure Independence Screening | 
| req_py | Detect Python Module | 
| Simdata | Generate simulation data (The unified class framework to generate simulation data) | 
| SIRS | Model-Free Feature Screening for Ultrahigh Dimensional Data | 
| SIS | Sure Independent Screening | 
| WLS | A Model-free Variable Screening Method Based on Leverage Score |