{"coeffs": [-7.567380760185817e-07, -2.7937233448429614e-08, -0.24136789333793138, 0.06306952875593629], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.841760487224158e-08, 2.934627367296681e-08, 0.02146916622890501, 0.018714435868480653], "covariance": [[3.412616559009343e-15, -3.3189438262222276e-16, 7.882905227152504e-10, -6.990657952660697e-10], [-3.318943826222227e-16, 8.61203778488665e-16, 1.384306783645512e-10, 2.350365940185563e-10], [7.882905227152503e-10, 1.384306783645512e-10, 0.00046092509856435535, -0.00011827413617982455], [-6.990657952660697e-10, 2.3503659401855633e-10, -0.00011827413617982455, 0.00035023010987547524]]}