{"coeffs": [-7.87185140322856e-07, -4.071835089989436e-08, -0.19126886231393309, 0.051553359407534464], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [8.300072609190013e-08, 5.706029662061743e-08, 0.032215865255518575, 0.02824444964499387], "covariance": [[6.889120531782631e-15, -6.227665084616184e-16, 1.2963205463902749e-09, -1.1916551730271109e-09], [-6.227665084616183e-16, 3.255877450432845e-15, 5.456565539253586e-10, 6.214609613687027e-10], [1.2963205463902749e-09, 5.456565539253587e-10, 0.0010378619741617289, -0.00011798154897385472], [-1.1916551730271107e-09, 6.214609613687028e-10, -0.00011798154897385472, 0.0007977489357485942]]}