{"coeffs": [-1.3011852181993158e-07, -1.9905247569899592e-09, -0.3606670225681743, 0.026002163543253385], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.309322600538406e-08, 2.1803123943160314e-08, 0.06314248251913845, 0.053847647138484674], "covariance": [[2.8188906476587904e-15, -7.53633019650178e-17, 1.6728178727605774e-09, -1.343721702852433e-09], [-7.536330196501777e-17, 4.753762136808106e-16, 2.4412413764771565e-10, 2.571897121807923e-10], [1.6728178727605778e-09, 2.4412413764771565e-10, 0.0039869730986797055, -0.0006623215850825456], [-1.343721702852433e-09, 2.571897121807924e-10, -0.0006623215850825456, 0.0028995691023507566]]}