def make_data():
    """creates example data set"""
    a = { (1,1):.25, (1,2):.15, (1,3):.2,
          (2,1):.3,  (2,2):.3,  (2,3):.1,
          (3,1):.15, (3,2):.65, (3,3):.05,
          (4,1):.1,  (4,2):.05,  (4,3):.8
          }
    epsilon = 0.01
    I,p = multidict({1:5, 2:6, 3:8, 4:20})
    K,LB = multidict({1:.2, 2:.3, 3:.2})
    return I,K,a,p,epsilon,LB
creates example data set