{"coeffs": [-4.4870418219681744e-07, 5.031923918791795e-09, -0.058580681480974235, 0.06671378862323851], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.302773594925921e-08, 6.390614760814507e-08, 0.04943325315112217, 0.044521188659158446], "covariance": [[2.8119407799043577e-15, -6.584916288857223e-16, 9.499715911148263e-10, -1.172683989073114e-09], [-6.584916288857228e-16, 4.083995702114027e-15, 1.5045963632986775e-09, 1.5826616162790467e-09], [9.499715911148263e-10, 1.5045963632986775e-09, 0.0024436465171029298, 0.00017829522448537322], [-1.1726839890731143e-09, 1.5826616162790467e-09, 0.00017829522448537308, 0.0019821362396243787]]}