Moments, cumulants, skewness, kurtosis and related tests
Lukasz Komsta <luke@novum.am.lublin.pl>, Frederick Novomestky <fnovomes@poly.edu>
Functions to calculate: moments, Pearson's kurtosis,
Geary's kurtosis and skewness; tests related to them (Anscombe-Glynn,
D'Agostino, Bonett-Seier).
GPL version 2 or newer. http://www.gnu.org/copyleft/gpl.html