x2, dof = sufficient_statistics ( data, dico, 1,2,[3]) 3.94665911866 2 x2, dof = sufficient_statistics ( data, dico, 0,1,[2]) 2.11949290586 2 x2, dof = sufficient_statistics ( data, dico, 0,1,[2,3,4]) 7.57130370024 6 x2, dof = sufficient_statistics ( data, dico, 0,3,[3,4]) 0.0 4 x2, dof = sufficient_statistics ( data, dico, 1,2,[3,4]) 3.51721104306 4