The distributions for the standard errors of fit (sE) of the simulated gradient data are shown in Fig. , and the corresponding average values are shown in row 6 of Table . For the reparameterized fits, the average sE values are very consistent with the added noise levels, indicating that the fits have converged (see row 6, trials 1-3 in Table ). For the fits to the original NK model, the average sE values are significantly larger (see row 6, trials 4-6), except for the highest noise level, where the sE value (9.54 x 10 -4