est.density.five        Estimating Unknown Parameters using Five-Number
                        Summary
est.density.minq2max    Estimating Unknown Parameters using Minimum,
                        Median and Maximum
est.density.q1q2q3      Estimating Unknown Parameters using First
                        Quartile, Median and Third Quartile
est.mean                Estimating Sample Mean using Quantiles
est.sd                  Estimating Sample Standard Deviation using
                        Quantiles
plotdist                Visualising Densities using Quantiles
