optimal.onesided.cutoff
                        Optimal one-sided winsorization for survey
                        outliers
optimal.onesided.cutoff.bygroup
                        Optimal one-sided winsorization for survey
                        outliers by group
robust.lm.onesided      Robust Regression using One-Sided Huber
                        Function
survdat.example         An example sample data file of 5000
                        respondents.
