def make_diagonal(id_seq_oligo_list, entry):
    """
    Small function to add the diagonal values to the stack, wich are not
    computed by the above functions since itertools.combinations does not
    iterate through them.
    Called by: OligoState.py:main()
    """
    line = []
    line.append(id_seq_oligo_list[entry][0])
    line.append(id_seq_oligo_list[entry][0])
    percent_id = 100
    line.append(percent_id)
    line.append(1)
    return line
