{"coeffs": [-1.7706831942618262e-07, -2.021416502204081e-09, -0.3096098482898965, 0.029203334043230698], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.014005878999891e-08, 9.857395662016146e-09, 0.02085224676540517, 0.017964834747856335], "covariance": [[4.0562196806461227e-16, -1.3630647547919879e-17, 1.9632519407432444e-10, -1.617894498678829e-10], [-1.3630647547919882e-17, 9.716824923753473e-17, 4.1841390627621037e-11, 4.2866097674917295e-11], [1.9632519407432444e-10, 4.184139062762103e-11, 0.00043481619516535044, -5.952071356613435e-05], [-1.6178944986788286e-10, 4.2866097674917295e-11, -5.952071356613436e-05, 0.0003227352875177864]]}