{"coeffs": [-7.850004711270507e-07, -2.015416776030378e-08, -0.24590540330413005, 0.058958963929418476], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [7.517933753270821e-08, 3.8114951828772494e-08, 0.02567043154485698, 0.022331704804947554], "covariance": [[5.65193279185687e-15, -5.015681884995592e-16, 1.1779029900869796e-09, -1.038203150965587e-09], [-5.01568188499559e-16, 1.4527495529096478e-15, 2.210780898122736e-10, 3.4486944007833417e-10], [1.1779029900869798e-09, 2.2107808981227342e-10, 0.0006589710556991883, -0.00015803525542346125], [-1.0382031509655867e-09, 3.448694400783342e-10, -0.0001580352554234612, 0.0004987050394953177]]}