{"coeffs": [-8.321108324199685e-08, -2.7861842281815034e-09, -0.30636960512814904, 0.000519993834893816], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [8.214290888955433e-08, 5.0302063631319185e-08, 3863784425241.04, 222842485419.71063], "covariance": [[6.747457480837623e-15, 0.0, -0.000276432944513749, 1.594318085763676e-05], [-7.075444864529617e-33, 2.530297605569284e-15, 0.0003477613200651122, 2.3038999776556887e-05], [-0.00027643296524193896, 0.0003477613200651122, 1.4928830084735234e+25, -8.610153244466814e+23], [1.5943181871718396e-05, 2.1735082504069512e-05, -8.610153244466814e+23, 4.965877330803395e+22]]}