getData -- get the underlying samples

i1 : getData sample(ER(3,4,0.1),5)

                2   4       2   2           3   2     3             2   2   
o1 = {{x x , x x , x }, {x x , x x }, {x , x , x x , x x }, {x , x x , x x ,
        1 2   1 2   3     1 3   2 3     2   2   2 3   2 3     1   1 2   2 3 
     ------------------------------------------------------------------------
      3     3     2       2 2         2     2 2
     x x , x x , x x x , x x }, {x , x x , x x }}
      1 2   1 3   1 2 3   2 3     2   1 3   2 3

o1 : List