Size and offset of the data in the matrix.

Is set to true, if the data have been reduced. The default value is false.

Array of data.

Array of tails. Is used for hypercube objects with multiple dimensions. It might happen that due to the window size some elements in a group cannot be displayed in the same page than the other elements of the group. Elements of a group of dimensions can be part of the previous or the next tail. If there is no tail, the array is empty [ ].