This aggregation_operator calculate the sum of terminus in the group.It is implemented as follow:
Where Xi is the indice value for an amino acid in the group.
This aggregation_operator calculate the square of each term in the group.It is implemented as follow:
Where Xi is the indice value for an amino acid in the group.
This aggregation_operator calculate the cube of each element in the group. It is implemented as follow:
Where Xi is the indice value for an amino acid in the group.