{"coeffs": [2.748867945399348e-08, -2.1508887514629593e-09, -0.09607374880019917, 0.001321718212113688], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.5459856661833034e-08, 5.545985397437468e-08, 10209063.312185433, 4102644.2608195823], "covariance": [[3.0757957009510657e-15, 1.173844041791287e-31, -2.7716608795357045e-09, 1.0541315017582297e-09], [1.4673050522391088e-31, 3.075795402858963e-15, -6.651986110885691e-09, 1.9543159199955526e-09], [-3.048826967489275e-09, -6.651986110885691e-09, 104224973712210.61, -41884155006081.32], [1.1086643518142818e-09, 1.1086643518142818e-09, -41884155006081.32, 16831689930835.855]]}