{"coeffs": [-2.2706127811501045e-07, 9.295881458219846e-10, -0.27997424089962636, 0.04690365424800618], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [6.474028188864934e-08, 3.187671579859425e-08, 0.065548934919214, 0.05664237296652416], "covariance": [[4.191304099021778e-15, -2.643469323637018e-16, 2.4109656275761203e-09, -2.0645786506223185e-09], [-2.643469323637019e-16, 1.016125010104348e-15, 4.647393067960196e-10, 6.086904605656071e-10], [2.4109656275761203e-09, 4.647393067960196e-10, 0.004296662869043353, -0.000892105913559932], [-2.0645786506223185e-09, 6.08690460565607e-10, -0.0008921059135599323, 0.003208358415278827]]}