{"coeffs": [-2.341271802329359e-07, -8.532249612386214e-09, -0.25283993435723323, 0.0015297297779538741], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [6.189504066519946e-08, 4.1442243713977143e-08, 309.4655061178626, 32030.701852085305], "covariance": [[3.830996058946694e-15, -1.321059630699456e-16, -5.205143342327421e-06, -0.0005387558473504165], [-1.321059630699456e-16, 1.7174595640486783e-15, 2.430603814858537e-06, 0.0002515725997104371], [-5.205143342323397e-06, 2.4306038148502823e-06, 95768.89947678486, 9912397.358377548], [-0.0005387558473506354, 0.0002515725997088432, 9912397.358377548, 1025965861.137181]]}