doublebootstrap         Double Bootstrap algorithm
gpd_lg_likelihood       Negative Log likelihood of Generalized Pareto
                        Distribution
hill_estimator          Hill Estimator
moments_estimator       Moments Estimator
pickands_estimator      Pickands Estimator
plfit                   Power-law fit (PLFIT) Algorithm
pot_estimator           Peaks-over-threshold (POT) Estimator
