q.test                  Hypothesis Tests and Confidence Intervals for
                        functions of quantiles
qcov                    Approximate Covariance Matrix Estimation for
                        Vectors of Quantile Estimators
qden                    Quantile Density Estimation
qineq                   Hypothesis Tests and Confidence Intervals for
                        Quantile-based Inequality Measures
qor                     Quantile Optimality Ratio
qrcov                   Approximate Covariance Matrix Estimation for
                        Ratios of Linear Combinations of Quantile
                        Estimators
rcv.test                Hypothesis Tests and Confidence Intervals for
                        the Robust Coefficient of Variation
