{"coeffs": [-1.2290273803717415e-05, -3.6732525764645316e-07, -0.29441927121308775, 0.10567205329770364], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.395715988423105e-06, 2.0827043082190206e-07, 0.048426137678468574, 0.022781845997904768], "covariance": [[5.7394550971860946e-12, -2.1823796559647673e-13, 1.139268215755887e-07, -4.905350588460868e-08], [-2.1823796559647668e-13, 4.3376572354740695e-14, -3.5663942983769445e-09, 2.861907163518609e-09], [1.1392682157558872e-07, -3.5663942983769458e-09, 0.0023450908104539936, -0.0009686447660119733], [-4.905350588460868e-08, 2.8619071635186095e-09, -0.0009686447660119733, 0.0005190125070722495]]}