/                        Group
/Dataset1.0              Dataset {4}
    Data:
         (0), (10,11), (20,21,22), (30,31,32,33)
/Dataset2.0              Dataset {4}
    Data:
         (0), (10,10.1), (20,20.1,20.2), (30,30.1,30.2,30.3)
/Dataset3.0              Dataset {SCALAR}
    Data:
         (0,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,
         48,50,52,54,56,58,60,62,64,66,68,70,72)