Computes inequality measures of a given variable taking into account weights. Suitable for ratio, interval and ordered scale. Includes measures developed by Gini, Theil, Leti, Palma ratio, 20:20 ratio, Allison and Foster, Jenkins, Cowell and Flechaire, Abul Naga and Yalcin, Apouey, Blair and Lacy. Bootstrap provides distribution of inequality measures enabling significance tests.