{"coeffs": [-6.68361707964901e-07, -2.5313823489137758e-08, -0.2908202660115813, 0.05729542338662897], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.8784965816081597e-08, 7.439179415884652e-09, 0.0066812585252664786, 0.005657634413688234], "covariance": [[3.528749407113542e-16, -2.5214898563678234e-17, 8.583730760664856e-11, -7.065726080586629e-11], [-2.5214898563678225e-17, 5.534139038172191e-17, 8.165594382995694e-12, 1.6194259110485446e-11], [8.583730760664854e-11, 8.165594382995694e-12, 4.4639215481446004e-05, -1.4232118636795131e-05], [-7.065726080586629e-11, 1.619425911048545e-11, -1.4232118636795131e-05, 3.20088271589494e-05]]}