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
