Color-coded matrices of correlation coefficients. (A) Parameters Ex, Z_i, and fdx. The exact numbers are indicated in Table S4. The data are the mean of 100 converging fits. The start vector was set to the true values. Noise factor 0.5. The main diagonal illustrates the correlations of the parameters with themselves, resulting in correlation coefficients of 1. Most other correlation coefficients are −0.3 to 0.3, with few exceptions. (B)Ex and K_i. The exact numbers are indicated in Table S5. The data are the mean of the same 100 converging fits as in A. Most correlation coefficients are −0.3 to 0.3, but there are both more positive and negative values than in A.