{"coeffs": [-9.848408370173772e-07, -2.851568178848105e-08, -0.24469679390047128, 0.06880775014459428], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.3852254068961008e-07, 6.515839959078404e-08, 0.039080052691973316, 0.03396587784328499], "covariance": [[1.918849427910468e-14, -2.0127677937917812e-15, 3.6230053359947284e-09, -3.184104180444626e-09], [-2.0127677937917812e-15, 4.245617037232286e-15, 4.895698759156817e-10, 1.0111324605162463e-09], [3.623005335994728e-09, 4.895698759156817e-10, 0.001527250518407411, -0.00045607510193841535], [-3.184104180444626e-09, 1.0111324605162463e-09, -0.0004560751019384154, 0.0011536808576649582]]}