| ttScreening-package | Genome-Wide DNA Methylation Sites Screening by Use of Training and Testing Samples |
| irwsva.build2 | Adjusted irwsva.build which builds surrogate variables from gene expression data |
| num.sv2 | Adjusted num.sv which estimates the number of important surrogate variables from a gene expression data set. |
| sva2 | The adjusted sva code using irwsva.build2 |
| ttScreening | A screening process built upon training and testing samples |