| asinh | Arc-hyperbolic-sine transformation |
| box_cox | Traditional box-cox power transformation. Accepts one real parameter |
| box_cox_exp | Exponential of the tranditional box-cox transformation |
| box_cox_negative | A generalized box-cox transformation that can handle negative data |
| box_cox_plus1 | Box-cox transformation with a shift of 1 added to the data |
| box_cox_plusmin | Box-cox transformation with the data shifted so that it is positive |
| box_cox_shift | Box-cox transformation of shifted variable |
| center | Centers the data column-wise |
| gm_mean | Calculate the geometric mean |
| list_transformations | List possible transformations |
| log_box_cox | Log of the traditional box-cox transformation |
| power | Simple power transformation |
| rrscale | Re-scale a data matrix |
| svdc | The completed SVD |
| winsor | Winsorizes the data |