{"coeffs": [2.371760408990655e-08, 0.023521262844388418, 1.6220735705057923, 0.044746402911697396], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [8.343361833872987e-09, 199081.60765115966, 375756.3458389157, 0.3394312929820449], "covariance": [[6.96116866909284e-17, -0.00041802842405441244, -0.0007890103343323895, -9.335464437352641e-10], [-0.0004180284454761125, 39633486504.97027, 74806177414.49635, 66035.3260180821], [-0.0007890103745603882, 74806177414.49007, 141192831438.2148, 124638.36730127936], [-9.335464742773815e-10, 66035.32554587549, 124638.36641066612, 0.1152136026554628]]}